diff --git a/models/git_diff_test.go b/models/git_diff_test.go
index e673094d2ec..7f390adb3fe 100644
--- a/models/git_diff_test.go
+++ b/models/git_diff_test.go
@@ -19,14 +19,14 @@ func assertLineEqual(t *testing.T, d1 *DiffLine, d2 *DiffLine) {
 }
 
 func TestDiffToHTML(t *testing.T) {
-	assertEqual(t, "foo <span class=\"added-code\">bar</span> biz", diffToHTML([]dmp.Diff{
+	assertEqual(t, "+foo <span class=\"added-code\">bar</span> biz", diffToHTML([]dmp.Diff{
 		dmp.Diff{dmp.DiffEqual, "foo "},
 		dmp.Diff{dmp.DiffInsert, "bar"},
 		dmp.Diff{dmp.DiffDelete, " baz"},
 		dmp.Diff{dmp.DiffEqual, " biz"},
 	}, DIFF_LINE_ADD))
 
-	assertEqual(t, "foo <span class=\"removed-code\">bar</span> biz", diffToHTML([]dmp.Diff{
+	assertEqual(t, "-foo <span class=\"removed-code\">bar</span> biz", diffToHTML([]dmp.Diff{
 		dmp.Diff{dmp.DiffEqual, "foo "},
 		dmp.Diff{dmp.DiffDelete, "bar"},
 		dmp.Diff{dmp.DiffInsert, " baz"},