diff --git a/openmp/tools/omptest/CMakeLists.txt b/openmp/tools/omptest/CMakeLists.txt
index e585eeb095a38..b313f223c354c 100644
--- a/openmp/tools/omptest/CMakeLists.txt
+++ b/openmp/tools/omptest/CMakeLists.txt
@@ -22,6 +22,8 @@ endif()
 
 include(CMakePackageConfigHelpers)
 
+include_directories(${LIBOMP_INCLUDE_DIR})
+
 set(OMPTEST_HEADERS
   ./include/AssertMacros.h
   ./include/InternalEvent.h