diff --git a/libraries/common.lib.php b/libraries/common.lib.php
index 69cc23f4a..7d7ee2351 100644
--- a/libraries/common.lib.php
+++ b/libraries/common.lib.php
@@ -1566,7 +1566,7 @@ function PMA_getTab($tab)
         // the text that follows and if browser does not display
         // images, the text is duplicated
         $image = '<img class="icon" src="' . htmlentities($GLOBALS['pmaThemeImage'])
-            .'%1$s" width="16" height="16" />%2$s';
+            .'%1$s" width="16" height="16" alt="" />%2$s';
         $tab['text'] = sprintf($image, htmlentities($tab['icon']), $tab['text']);
     }
     // check to not display an empty link-text