diff --git a/sequencer.c b/sequencer.c
index 7886e2269e..e258bb6469 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -2558,7 +2558,7 @@ static enum check_level get_missing_commit_check_level(void)
 		return CHECK_WARN;
 	if (!strcasecmp("error", value))
 		return CHECK_ERROR;
-	warning(_("unrecognized setting %s for option"
+	warning(_("unrecognized setting %s for option "
 		  "rebase.missingCommitsCheck. Ignoring."), value);
 	return CHECK_IGNORE;
 }