Index: win/jtp/winjtp.c
--- win/jtp/winjtp.c.orig
+++ win/jtp/winjtp.c
@@ -1504,12 +1504,12 @@ menu_item **menu_list;
   if (!tempwindow)
   {
     jtp_messagebox("ERROR: Can't find window for menu selection!");
-    return;
+    return(-1);
   }  
   if (!tempwindow->menu)
   { 
     jtp_messagebox("ERROR: Window does not have a menu!");
-    return;
+    return(-1);
   }  
 
   tempwindow->menu->selectiontype = how;
