1 files changed, 1 insertions, 1 deletions

diff --git a/src/xmenu.c b/src/xmenu.c
index c101d9f5975..9b1ac540c21 100644
--- a/src/xmenu.c
+++ b/src/xmenu.c
@@ -1306,7 +1306,7 @@ create_and_show_popup_menu (struct frame *f, widget_value *first_wv,
       for (i = 0; i < 5; i++)
         if (FRAME_DISPLAY_INFO (f)->grabbed & (1 << i))
           break;
-      // If keys aren't grabbed (i.e. a mouse up event), use 0.
+      /* If keys aren't grabbed (i.e., a mouse up event), use 0.  */
       if (i == 5) i = 0;
     }