diff --git a/skins/classic/images/quota.gif b/skins/classic/images/quota.gif
deleted file mode 100644
index b029e7d56..000000000
Binary files a/skins/classic/images/quota.gif and /dev/null differ
diff --git a/skins/classic/templates/folders.html b/skins/classic/templates/folders.html
index 6ddef05ac..f00c23b22 100644
--- a/skins/classic/templates/folders.html
+++ b/skins/classic/templates/folders.html
@@ -29,7 +29,7 @@
     <roundcube:button name="mailboxmenulink" id="mailboxmenulink" type="link" title="folderactions" class="button groupactions" onclick="rcmail_ui.show_popup('mailboxmenu');return false" content=" " />
 
     <roundcube:if condition="env:quota" />
-    <img id="quotaimg" src="/images/quota.<roundcube:exp expression="browser:ie && browser:ver < 7 ? 'gif' : 'png'" />" alt="" width="102" height="16" />
+    <img id="quotaimg" src="/images/quota.png" alt="" width="102" height="16" />
     <div id="quota">
         <roundcube:object name="quotaDisplay" display="image" width="100" height="14" id="quotadisplay" />
     </div>
diff --git a/skins/classic/templates/mail.html b/skins/classic/templates/mail.html
index b476f6900..e760eb4fd 100644
--- a/skins/classic/templates/mail.html
+++ b/skins/classic/templates/mail.html
@@ -30,7 +30,7 @@
   <roundcube:button name="mailboxmenulink" id="mailboxmenulink" type="link" title="folderactions" class="button groupactions" onclick="rcmail_ui.show_popup('mailboxmenu');return false" content=" " />
 
 <roundcube:if condition="env:quota" />
-<img id="quotaimg" src="/images/quota.<roundcube:exp expression="browser:ie && browser:ver < 7 ? 'gif' : 'png'" />" alt="" width="102" height="16" />
+<img id="quotaimg" src="/images/quota.png" alt="" width="102" height="16" />
 <div id="quota">
   <roundcube:object name="quotaDisplay" display="image" width="100" height="14" id="quotadisplay" />
 </div>