diff --git a/src/proto/popupmnu.pro b/src/proto/popupmnu.pro
index 74a53e2..423076c 100644
--- a/src/proto/popupmnu.pro
+++ b/src/proto/popupmnu.pro
@@ -1,8 +1,8 @@
 /* popupmnu.c */
-void pum_display __ARGS((pumitem_T *array, int size, int selected));
-void pum_redraw __ARGS((void));
-void pum_undisplay __ARGS((void));
-void pum_clear __ARGS((void));
-int pum_visible __ARGS((void));
-int pum_get_height __ARGS((void));
+void pum_display(pumitem_T *array, int size, int selected);
+void pum_redraw(void);
+void pum_undisplay(void);
+void pum_clear(void);
+int pum_visible(void);
+int pum_get_height(void);
 /* vim: set ft=c : */