diff --git a/pyopencl/scan.py b/pyopencl/scan.py
index ac8052e87d3bebd01b3117ae1d8251d0083241aa..915c50e3af0e0f8ab428c5d904318d76d485601c 100644
--- a/pyopencl/scan.py
+++ b/pyopencl/scan.py
@@ -835,6 +835,8 @@ _IGNORED_WORDS = set("""
 
         a b prev_item i last_item prev_value
         N NO_SEG_BOUNDARY across_seg_boundary
+
+        arg_offset_adjustment
         """.split())