diff --git a/src/change.c b/src/change.c
index f2dfc93..e5ac97b 100644
--- a/src/change.c
+++ b/src/change.c
@@ -1218,7 +1218,7 @@
     // If "count" is negative the caller must be doing something wrong.
     if (count < 1)
     {
-	siemsg("E950: Invalid count for del_bytes(): %ld", count);
+	siemsg("E292: Invalid count for del_bytes(): %ld", count);
 	return FAIL;
     }