diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5cf7e0e8..ef6e3eea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -303,6 +303,7 @@ target_compile_definitions(acl_objs PUBLIC
   CL_USE_DEPRECATED_OPENCL_1_1_APIS=1
   CL_USE_DEPRECATED_OPENCL_1_2_APIS=1
   CL_TARGET_OPENCL_VERSION=300
+  $<$<CONFIG:Debug>:MEM_DEBUG_MSG>
   )
 target_include_directories(acl_objs PUBLIC include)
 target_include_directories(acl_objs PRIVATE