1 files changed, 1 insertions, 1 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 8f59ac1297d..91dd7fc7174 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -98,7 +98,7 @@ Boston, MA 02111-1307, USA.  */
 #endif
 
 #ifdef USE_LUCID
-extern int xlwmenu_window_p (Widget w, Window window);
+extern int xlwmenu_window_p P_ ((Widget w, Window window));
 extern void xlwmenu_redisplay P_ ((Widget));
 #endif