diff --git a/rocrtst/suites/test_common/CMakeLists.txt b/rocrtst/suites/test_common/CMakeLists.txt
index c0c0fc4086..4c3febe01d 100755
--- a/rocrtst/suites/test_common/CMakeLists.txt
+++ b/rocrtst/suites/test_common/CMakeLists.txt
@@ -152,8 +152,8 @@ else()
 endif()
 
 if(NOT EXISTS "${OPENCL_INC_DIR}/opencl-c.h")
-  if(DEFINED ENV{WORK_ROOT})
-    set(OPENCL_INC_DIR "$ENV{WORK_ROOT}/external/llvm-project/clang/lib/Headers/")
+  if(DEFINED ENV{LLVM_PROJECT_ROOT})
+    set(OPENCL_INC_DIR "$ENV{LLVM_PROJECT_ROOT}/clang/lib/Headers/")
   else()
     set(OPENCL_INC_DIR "${OPENCL_DIR}/../../../external/llvm-project/clang/lib/Headers/")
   endif()