diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
index 2091610df..26f0acc6e 100755
--- a/templates/repo/header.tmpl
+++ b/templates/repo/header.tmpl
@@ -90,7 +90,7 @@
 {{end}}
 	<div class="ui tabs container">
 		{{if not .Repository.IsBeingCreated}}
-			<div class="ui tabular stackable menu navbar">
+			<div class="ui tabular menu navbar">
 				{{if .Permission.CanRead $.UnitTypeCode}}
 				<div class="dropdown-menu">
 					<a class="{{if or .PageIsViewCode .PageIsReleaseList .PageIsWiki .PageIsActivity .PageIsViewCode}}active{{end}} item hover_active" href="{{.RepoLink}}{{if (ne .BranchName .Repository.DefaultBranch)}}/src/{{.BranchNameSubURL | EscapePound}}{{end}}">