diff --git a/routers/web/web.go b/routers/web/web.go
index c37add30d53..8b260867aa8 100644
--- a/routers/web/web.go
+++ b/routers/web/web.go
@@ -1229,7 +1229,7 @@ func registerWebRoutes(m *web.Router) {
 	m.Group("/{username}/{reponame}/{type:issues}", func() {
 		// these handlers also check unit permissions internally
 		m.Get("", repo.Issues)
-		m.Get("/{index}", repo.ViewIssue) // also do pull-request redirection (".../issues/{PR-number}" -> ".../pulls/{PR-number}")
+		m.Get("/{index}", repo.SetEditorconfigIfExists, repo.ViewIssue) // also do pull-request redirection (".../issues/{PR-number}" -> ".../pulls/{PR-number}")
 	}, optSignIn, context.RepoAssignment, context.RequireUnitReader(unit.TypeIssues, unit.TypePullRequests, unit.TypeExternalTracker))
 	// end "/{username}/{reponame}": issue list, issue view (pull-request redirection), external tracker
 
@@ -1530,7 +1530,7 @@ func registerWebRoutes(m *web.Router) {
 	m.Group("/{username}/{reponame}", func() {
 		m.Get("/{type:pulls}", repo.Issues)
 		m.Group("/{type:pulls}/{index}", func() {
-			m.Get("", repo.SetWhitespaceBehavior, repo.GetPullDiffStats, repo.ViewIssue)
+			m.Get("", repo.SetEditorconfigIfExists, repo.SetWhitespaceBehavior, repo.GetPullDiffStats, repo.ViewIssue)
 			m.Get(".diff", repo.DownloadPullDiff)
 			m.Get(".patch", repo.DownloadPullPatch)
 			m.Get("/merge_box", repo.ViewPullMergeBox)