diff --git a/level_zero/core/source/cmdlist/cmdlist.h b/level_zero/core/source/cmdlist/cmdlist.h
index 65f2bd4879..7adb31c6dc 100644
--- a/level_zero/core/source/cmdlist/cmdlist.h
+++ b/level_zero/core/source/cmdlist/cmdlist.h
@@ -99,9 +99,9 @@ struct CommandList : _ze_command_list_handle_t {
                                            const CmdListKernelLaunchParams &launchParams) = 0;
     virtual ze_result_t appendLaunchCooperativeKernel(ze_kernel_handle_t kernelHandle,
                                                       const ze_group_count_t *launchKernelArgs,
-                                                      ze_event_handle_t signalEvent,
+                                                      ze_event_handle_t hSignalEvent,
                                                       uint32_t numWaitEvents,
-                                                      ze_event_handle_t *waitEventHandles) = 0;
+                                                      ze_event_handle_t *phWaitEvents) = 0;
     virtual ze_result_t appendLaunchKernelIndirect(ze_kernel_handle_t kernelHandle,
                                                    const ze_group_count_t *pDispatchArgumentsBuffer,
                                                    ze_event_handle_t hEvent, uint32_t numWaitEvents,
diff --git a/level_zero/core/source/cmdlist/cmdlist_hw.h b/level_zero/core/source/cmdlist/cmdlist_hw.h
index 1d8eb8d429..7f0d2f5691 100644
--- a/level_zero/core/source/cmdlist/cmdlist_hw.h
+++ b/level_zero/core/source/cmdlist/cmdlist_hw.h
@@ -88,9 +88,9 @@ struct CommandListCoreFamily : CommandListImp {
                                    const CmdListKernelLaunchParams &launchParams) override;
     ze_result_t appendLaunchCooperativeKernel(ze_kernel_handle_t kernelHandle,
                                               const ze_group_count_t *launchKernelArgs,
-                                              ze_event_handle_t signalEvent,
+                                              ze_event_handle_t hSignalEvent,
                                               uint32_t numWaitEvents,
-                                              ze_event_handle_t *waitEventHandles) override;
+                                              ze_event_handle_t *phWaitEvents) override;
     ze_result_t appendLaunchKernelIndirect(ze_kernel_handle_t kernelHandle,
                                            const ze_group_count_t *pDispatchArgumentsBuffer,
                                            ze_event_handle_t hEvent, uint32_t numWaitEvents,
diff --git a/level_zero/core/source/cmdlist/cmdlist_hw.inl b/level_zero/core/source/cmdlist/cmdlist_hw.inl
index a22ee08446..5285efd93a 100644
--- a/level_zero/core/source/cmdlist/cmdlist_hw.inl
+++ b/level_zero/core/source/cmdlist/cmdlist_hw.inl
@@ -253,18 +253,18 @@ ze_result_t CommandListCoreFamily<gfxCoreFamily>::appendLaunchKernel(ze_kernel_h
 template <GFXCORE_FAMILY gfxCoreFamily>
 ze_result_t CommandListCoreFamily<gfxCoreFamily>::appendLaunchCooperativeKernel(ze_kernel_handle_t kernelHandle,
                                                                                 const ze_group_count_t *launchKernelArgs,
-                                                                                ze_event_handle_t signalEvent,
+                                                                                ze_event_handle_t hSignalEvent,
                                                                                 uint32_t numWaitEvents,
-                                                                                ze_event_handle_t *waitEventHandles) {
+                                                                                ze_event_handle_t *phWaitEvents) {
 
-    ze_result_t ret = addEventsToCmdList(numWaitEvents, waitEventHandles);
+    ze_result_t ret = addEventsToCmdList(numWaitEvents, phWaitEvents);
     if (ret) {
         return ret;
     }
 
     Event *event = nullptr;
-    if (signalEvent) {
-        event = Event::fromHandle(signalEvent);
+    if (hSignalEvent) {
+        event = Event::fromHandle(hSignalEvent);
     }
 
     CmdListKernelLaunchParams launchParams = {};
diff --git a/level_zero/core/source/cmdlist/cmdlist_hw_immediate.h b/level_zero/core/source/cmdlist/cmdlist_hw_immediate.h
index 92415bcfbb..ce4aeeb28b 100644
--- a/level_zero/core/source/cmdlist/cmdlist_hw_immediate.h
+++ b/level_zero/core/source/cmdlist/cmdlist_hw_immediate.h
@@ -118,12 +118,6 @@ struct CommandListCoreFamilyImmediate : public CommandListCoreFamily<gfxCoreFami
                                           uint32_t numWaitEvents,
                                           ze_event_handle_t *phWaitEvents) override;
 
-    ze_result_t appendLaunchCooperativeKernel(ze_kernel_handle_t kernelHandle,
-                                              const ze_group_count_t *launchKernelArgs,
-                                              ze_event_handle_t signalEvent,
-                                              uint32_t numWaitEvents,
-                                              ze_event_handle_t *waitEventHandles) override;
-
     MOCKABLE_VIRTUAL ze_result_t executeCommandListImmediateWithFlushTask(bool performMigration);
 
     void checkAvailableSpace();
diff --git a/level_zero/core/source/cmdlist/cmdlist_hw_immediate.inl b/level_zero/core/source/cmdlist/cmdlist_hw_immediate.inl
index bdfe65e9c9..2851bf195d 100644
--- a/level_zero/core/source/cmdlist/cmdlist_hw_immediate.inl
+++ b/level_zero/core/source/cmdlist/cmdlist_hw_immediate.inl
@@ -458,19 +458,6 @@ ze_result_t CommandListCoreFamilyImmediate<gfxCoreFamily>::appendMemoryRangesBar
     return flushImmediate(ret, true);
 }
 
-template <GFXCORE_FAMILY gfxCoreFamily>
-ze_result_t CommandListCoreFamilyImmediate<gfxCoreFamily>::appendLaunchCooperativeKernel(ze_kernel_handle_t kernelHandle,
-                                                                                         const ze_group_count_t *launchKernelArgs,
-                                                                                         ze_event_handle_t signalEvent,
-                                                                                         uint32_t numWaitEvents,
-                                                                                         ze_event_handle_t *waitEventHandles) {
-    if (this->isFlushTaskSubmissionEnabled) {
-        checkAvailableSpace();
-    }
-    auto ret = CommandListCoreFamily<gfxCoreFamily>::appendLaunchCooperativeKernel(kernelHandle, launchKernelArgs, signalEvent, numWaitEvents, waitEventHandles);
-    return flushImmediate(ret, true);
-}
-
 template <GFXCORE_FAMILY gfxCoreFamily>
 ze_result_t CommandListCoreFamilyImmediate<gfxCoreFamily>::flushImmediate(ze_result_t inputRet, bool performMigration) {
     if (inputRet == ZE_RESULT_SUCCESS) {
diff --git a/level_zero/core/test/unit_tests/mocks/mock_cmdlist.h b/level_zero/core/test/unit_tests/mocks/mock_cmdlist.h
index 778056e1c4..4a1124079d 100644
--- a/level_zero/core/test/unit_tests/mocks/mock_cmdlist.h
+++ b/level_zero/core/test/unit_tests/mocks/mock_cmdlist.h
@@ -180,9 +180,9 @@ struct MockCommandList : public CommandList {
     ADDMETHOD_NOBASE(appendLaunchCooperativeKernel, ze_result_t, ZE_RESULT_SUCCESS,
                      (ze_kernel_handle_t kernelHandle,
                       const ze_group_count_t *launchKernelArgs,
-                      ze_event_handle_t signalEvent,
+                      ze_event_handle_t hSignalEvent,
                       uint32_t numWaitEvents,
-                      ze_event_handle_t *waitEventHandles));
+                      ze_event_handle_t *phWaitEvents));
 
     ADDMETHOD_NOBASE(appendLaunchKernelIndirect, ze_result_t, ZE_RESULT_SUCCESS,
                      (ze_kernel_handle_t kernelHandle,
diff --git a/level_zero/core/test/unit_tests/sources/cmdlist/test_cmdlist_append_launch_kernel_1.cpp b/level_zero/core/test/unit_tests/sources/cmdlist/test_cmdlist_append_launch_kernel_1.cpp
index 3d429ad065..0349f7ac59 100644
--- a/level_zero/core/test/unit_tests/sources/cmdlist/test_cmdlist_append_launch_kernel_1.cpp
+++ b/level_zero/core/test/unit_tests/sources/cmdlist/test_cmdlist_append_launch_kernel_1.cpp
@@ -784,41 +784,5 @@ HWTEST_F(CommandListAppendLaunchKernel, givenInvalidEventListWhenAppendLaunchCoo
     EXPECT_EQ(ZE_RESULT_ERROR_INVALID_ARGUMENT, returnValue);
 }
 
-HWTEST2_F(CommandListAppendLaunchKernel, givenImmediateCommandListWhenAppendLaunchCooperativeKernelUsingFlushTaskThenExpectCorrectExecuteCall, IsAtLeastSkl) {
-    createKernel();
-
-    MockCommandListImmediateHw<gfxCoreFamily> cmdList;
-    cmdList.isFlushTaskSubmissionEnabled = true;
-    cmdList.cmdListType = CommandList::CommandListType::TYPE_IMMEDIATE;
-    cmdList.csr = device->getNEODevice()->getDefaultEngine().commandStreamReceiver;
-    cmdList.initialize(device, NEO::EngineGroupType::RenderCompute, 0u);
-
-    ze_group_count_t groupCount{1, 1, 1};
-    ze_result_t returnValue;
-
-    returnValue = cmdList.appendLaunchCooperativeKernel(kernel->toHandle(), &groupCount, nullptr, 0, nullptr);
-    EXPECT_EQ(0u, cmdList.executeCommandListImmediateCalledCount);
-    EXPECT_EQ(1u, cmdList.executeCommandListImmediateWithFlushTaskCalledCount);
-    EXPECT_EQ(ZE_RESULT_SUCCESS, returnValue);
-}
-
-HWTEST2_F(CommandListAppendLaunchKernel, givenImmediateCommandListWhenAppendLaunchCooperativeKernelNotUsingFlushTaskThenExpectCorrectExecuteCall, IsAtLeastSkl) {
-    createKernel();
-
-    MockCommandListImmediateHw<gfxCoreFamily> cmdList;
-    cmdList.isFlushTaskSubmissionEnabled = false;
-    cmdList.cmdListType = CommandList::CommandListType::TYPE_IMMEDIATE;
-    cmdList.csr = device->getNEODevice()->getDefaultEngine().commandStreamReceiver;
-    cmdList.initialize(device, NEO::EngineGroupType::RenderCompute, 0u);
-
-    ze_group_count_t groupCount{1, 1, 1};
-    ze_result_t returnValue;
-
-    returnValue = cmdList.appendLaunchCooperativeKernel(kernel->toHandle(), &groupCount, nullptr, 0, nullptr);
-    EXPECT_EQ(1u, cmdList.executeCommandListImmediateCalledCount);
-    EXPECT_EQ(0u, cmdList.executeCommandListImmediateWithFlushTaskCalledCount);
-    EXPECT_EQ(ZE_RESULT_SUCCESS, returnValue);
-}
-
 } // namespace ult
 } // namespace L0