diff --git a/libraries/dbi/mysql.dbi.lib.php b/libraries/dbi/mysql.dbi.lib.php
index 3b51635d2..a57655ba6 100644
--- a/libraries/dbi/mysql.dbi.lib.php
+++ b/libraries/dbi/mysql.dbi.lib.php
@@ -255,7 +255,7 @@ function PMA_DBI_getError($link = null)
 //            return false;
     }
 
-    if (null !== $link) {
+    if (null !== $link && false !== $link) {
         $error_number = mysql_errno($link);
         $error_message = mysql_error($link);
     } else {