diff --git a/pyopencl/scan.py b/pyopencl/scan.py
index 6919ea551df74f2ea65d5cd8bf57ee9fb2c195fa..3b09b7d0d097972714bed7cc8537ab286c472dc8 100644
--- a/pyopencl/scan.py
+++ b/pyopencl/scan.py
@@ -783,7 +783,7 @@ _IGNORED_WORDS = set("""
         pragma __attribute__ __global __kernel __local
         get_local_size get_local_id cl_khr_fp64 reqd_work_group_size
         get_num_groups barrier get_group_id
-        CL_VERSION_1_1 __OPENCL_VERSION__
+        CL_VERSION_1_1 __OPENCL_C_VERSION__ 120
 
         _final_update _debug_scan kernel_name