diff --git a/functions.inc.php b/functions.inc.php
index 3a15697f..acfe8589 100644
--- a/functions.inc.php
+++ b/functions.inc.php
@@ -1583,7 +1583,7 @@ function db_connection_string() {
         if ($socket) {
             $dsn .= "unix_socket={$socket}";
         } else {
-            $dsn .= "mysql:host={$CONF['database_host']}";
+            $dsn .= "host={$CONF['database_host']}";
         }
 
         if (isset($CONF['database_port'])) {