diff --git a/libraries/server_variables.lib.php b/libraries/server_variables.lib.php
index 13e365b9f3..9dde1a44c7 100644
--- a/libraries/server_variables.lib.php
+++ b/libraries/server_variables.lib.php
@@ -241,10 +241,7 @@ function PMA_getHtmlForServerVariablesItems($variable_doc_links)
             $output .= '<span title="'
                 . __('This is a read-only variable and can not be edited')
                 . '" class="read_only_var" >'
-                . PMA_Util::getImage(
-                    's_error2.png',
-                    ''
-                )
+                . PMA_Util::getIcon('bd_edit.png', __('Edit'))
                 . '</span>';
         }
 
diff --git a/themes/original/css/common.css.php b/themes/original/css/common.css.php
index 051c002e80..b1d33a7710 100644
--- a/themes/original/css/common.css.php
+++ b/themes/original/css/common.css.php
@@ -247,10 +247,6 @@ fieldset .formelement {
     white-space:        nowrap;
 }
 
-.read_only_var {
-    padding: 20%;
-}
-
 /* revert for Gecko */
 fieldset div[class=formelement] {
     white-space:        normal;
diff --git a/themes/pmahomme/css/common.css.php b/themes/pmahomme/css/common.css.php
index 26d15babf7..815ffbfb40 100644
--- a/themes/pmahomme/css/common.css.php
+++ b/themes/pmahomme/css/common.css.php
@@ -530,10 +530,6 @@ fieldset .formelement {
     white-space: nowrap;
 }
 
-.read_only_var {
-    padding: 20%;
-}
-
 /* revert for Gecko */
 fieldset div[class=formelement] {
     white-space: normal;