1 files changed, 2 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index ab48077dc20..05efd6908d8 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -678,7 +678,8 @@ echo_char (c)
 
       if (INTEGERP (c))
         {
-          if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6)
+          if (ptr - current_kboard->echobuf
+              > ECHOBUFSIZE - KEY_DESCRIPTION_SIZE)
             return;
 
           ptr = push_key_description (XINT (c), ptr);