diff --git a/routers/repo/commit.go b/routers/repo/commit.go
index a2695d2d4d..42fe81443e 100644
--- a/routers/repo/commit.go
+++ b/routers/repo/commit.go
@@ -201,6 +201,8 @@ func FileHistory(ctx *context.Context) {
 func Diff(ctx *context.Context) {
 	ctx.Data["PageIsDiff"] = true
 	ctx.Data["RequireHighlightJS"] = true
+	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireTribute"] = true
 
 	userName := ctx.Repo.Owner.Name
 	repoName := ctx.Repo.Repository.Name