diff --git a/level_zero/CMakeLists.txt b/level_zero/CMakeLists.txt
index c4b4f4fc30..3ed065f87a 100644
--- a/level_zero/CMakeLists.txt
+++ b/level_zero/CMakeLists.txt
@@ -337,8 +337,6 @@ if(BUILD_WITH_L0)
   )
 
   hide_subdir(api)
-  add_subdirectory_unique(source)
-
   hide_subdir(ddi)
   hide_subdir(experimental)
   hide_subdir(include)
diff --git a/level_zero/source/CMakeLists.txt b/level_zero/source/CMakeLists.txt
deleted file mode 100644
index 7b68ed1f5d..0000000000
--- a/level_zero/source/CMakeLists.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Copyright (C) 2020-2021 Intel Corporation
-#
-# SPDX-License-Identifier: MIT
-#
-
-add_subdirectories()
-