diff --git a/src/native/common/extgl.h b/src/native/common/extgl.h
index 410abe7b..cbb7025c 100644
--- a/src/native/common/extgl.h
+++ b/src/native/common/extgl.h
@@ -5559,7 +5559,7 @@ struct GLXExtensionTypes
 struct AGLExtensionTypes
 {
 };
-#endif;
+#endif /* OSX */
 
 struct GLUExtensionTypes
 {