1 files changed, 3 insertions, 6 deletions
diff --git a/diff.c b/diff.c
index f725d217de..a7bfe73fe6 100644
--- a/diff.c
+++ b/diff.c
@@ -2313,12 +2313,9 @@ const char *diff_get_color(int diff_use_color, enum color_diff ix)
 
 const char *diff_line_prefix(struct diff_options *opt)
 {
-	struct strbuf *msgbuf;
-	if (!opt->output_prefix)
-		return "";
-
-	msgbuf = opt->output_prefix(opt, opt->output_prefix_data);
-	return msgbuf->buf;
+	return opt->output_prefix ?
+		opt->output_prefix(opt, opt->output_prefix_data) :
+		"";
 }
 
 static unsigned long sane_truncate_line(char *line, unsigned long len)