diff --git a/builtin/commit.c b/builtin/commit.c
index 10acc53..be08f41 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1618,7 +1618,7 @@
 					   !current_head
 					   ? NULL
 					   : current_head->object.sha1,
-					   0);
+					   0, NULL);
 
 	nl = strchr(sb.buf, '\n');
 	if (nl)