diff: fix can't show compare page for fork repository (#4110)

1 files changed, 1 insertions, 1 deletions

diff --git a/cmd/web.go b/cmd/web.go
index 9ed63289..792d8b67 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -608,7 +608,7 @@ func runWeb(ctx *cli.Context) error {
 		}, context.RepoRef())
 		m.Get("/commit/:sha([a-f0-9]{7,40})\\.:ext(patch|diff)", repo.RawDiff)
 
-		m.Get("/compare/:before([a-z0-9]{40})\\.\\.\\.:after([a-z0-9]{40})", repo.CompareDiff)
+		m.Get("/compare/:before([a-z0-9]{40})\\.\\.\\.:after([a-z0-9]{40})", context.RepoRef(), repo.CompareDiff)
 	}, ignSignIn, context.RepoAssignment(), repo.MustBeNotBare)
 	m.Group("/:username/:reponame", func() {
 		m.Get("/stars", repo.Stars)