1 files changed, 4 insertions, 1 deletions
diff --git a/ui-diff.c b/ui-diff.c
index 7ec5701..999b6f3 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -37,3 +37,6 @@ static void header(unsigned char *sha1, char *path1,
 	char *abbrev1, *abbrev2;
-
+	if (is_null_sha1(sha1))
+		path1 = "dev/null";
+	if (is_null_sha1(sha2))
+		path2 = "dev/null";
 	html("<tr><td>");