diff --git a/rocrtst/suites/test_common/CMakeLists.txt b/rocrtst/suites/test_common/CMakeLists.txt
index e31094b404..9e136ad2b0 100755
--- a/rocrtst/suites/test_common/CMakeLists.txt
+++ b/rocrtst/suites/test_common/CMakeLists.txt
@@ -97,7 +97,11 @@ else()
 endif()
 
 if(NOT EXISTS "${OPENCL_INC_DIR}/opencl-c.h")
-  set(OPENCL_INC_DIR "${OPENCL_DIR}/../../../external/llvm-project/clang/lib/Headers/")
+  if(DEFINED ENV{WORK_ROOT})
+    set(OPENCL_INC_DIR "$ENV{WORK_ROOT}/external/llvm-project/clang/lib/Headers/")
+  else()
+    set(OPENCL_INC_DIR "${OPENCL_DIR}/../../../external/llvm-project/clang/lib/Headers/")
+  endif()
   if(NOT EXISTS "${OPENCL_INC_DIR}/opencl-c.h")
     message(WARNING "opencl-c.h not found.")
   endif()