diff --git a/core/input/input.c b/core/input/input.c
index 6419f28bc1..d96ac1908d 100644
--- a/core/input/input.c
+++ b/core/input/input.c
@@ -578,7 +578,7 @@ static char *get_key_combo_name(int *keys, int max)
     while (1) {
         ret = get_key_name(*keys, ret);
         if (--max && *++keys)
-            talloc_asprintf_append_buffer(ret, "-");
+            ret = talloc_asprintf_append_buffer(ret, "-");
         else
             break;
     }