1 files changed, 1 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 1a7821acb37..b256e904729 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -2234,7 +2234,7 @@ make_lispy_event (event)
       /* A simple keystroke.  */
     case ascii_keystroke:
       {
-        int c = XFASTINT (event->code);
+        int c = XFASTINT (event->code) & 0377;
         /* Turn ASCII characters into control characters
            when proper.  */
         if (event->modifiers & ctrl_modifier)