diff --git a/basis/opengl/gl/extensions/extensions.factor b/basis/opengl/gl/extensions/extensions.factor
index 540fba40f0..17813b8c82 100644
--- a/basis/opengl/gl/extensions/extensions.factor
+++ b/basis/opengl/gl/extensions/extensions.factor
@@ -49,7 +49,7 @@ reset-gl-function-number-counter
 
 SYNTAX: GL-FUNCTION:
     gl-function-calling-convention
-    scan
+    scan-c-type
     scan dup
     scan drop "}" parse-tokens swap prefix
     gl-function-number