diff --git a/modoboa/extensions/webmail/templates/webmail/index.html b/modoboa/extensions/webmail/templates/webmail/index.html
index d8f74174d..ee950157e 100644
--- a/modoboa/extensions/webmail/templates/webmail/index.html
+++ b/modoboa/extensions/webmail/templates/webmail/index.html
@@ -32,7 +32,7 @@ $(document).ready(function() {
 
 {% block fixed_content %}
 <div class="row">
-    <div id="leftcol" class="col-lg-1 col-md-3 col-ms-3 col-xs-0">
+    <div id="leftcol" class="col-lg-2 col-md-3 col-ms-3 col-xs-0">
       <div id="folders" class="well">{{ mboxes }}</div>
     </div>
     <div id="rightcol" class="col-lg-11 col-md-12 col-ms-12 col-xs-12">