diff --git a/level_zero/core/source/gfx_core_helpers/l0_gfx_core_helper_tgllp_to_dg2.inl b/level_zero/core/source/gfx_core_helpers/l0_gfx_core_helper_tgllp_to_dg2.inl
index eb5dfde931..9763145f41 100644
--- a/level_zero/core/source/gfx_core_helpers/l0_gfx_core_helper_tgllp_to_dg2.inl
+++ b/level_zero/core/source/gfx_core_helpers/l0_gfx_core_helper_tgllp_to_dg2.inl
@@ -86,6 +86,7 @@ std::vector<EuThread::ThreadId> L0GfxCoreHelperHw<Family>::getThreadsFromAttenti
                         return threads;
                     }
 
+                    UNRECOVERABLE_IF(!bitmask);
                     std::bitset<8> bits(bitmask[offset]);
                     for (uint32_t i = 0; i < 8; i++) {
                         if (bits.test(i)) {