diff --git a/src/main/twirl/gitbucket/core/repo/commit.scala.html b/src/main/twirl/gitbucket/core/repo/commit.scala.html
index 32ff820..0658bbf 100644
--- a/src/main/twirl/gitbucket/core/repo/commit.scala.html
+++ b/src/main/twirl/gitbucket/core/repo/commit.scala.html
@@ -15,7 +15,7 @@
       <tr>
         <th class="box-header">
           <div class="pull-right align-right">
-            <a href="@helpers.url(repository)/tree/@commit.id" class="btn btn-small">Browse code</a>
+            <a href="@helpers.url(repository)/tree/@commit.id" class="btn btn-default">Browse code</a>
           </div>
           <div class="commit-log">@helpers.link(commit.summary, repository)</div>
           @if(commit.description.isDefined){