1 files changed, 4 insertions, 0 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 2e3e8a4d3e3..474082d7b47 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1564,6 +1564,10 @@ x_find_modifier_meanings ()
           KeyCode code =
             mods->modifiermap[(row * mods->max_keypermod) + col];
 
+          /* Zeroes are used for filler.  Skip them.  */
+          if (code == 0)
+            continue;
+
           /* Are any of this keycode's keysyms a meta key?  */
           {
             int code_col;