diff --git a/db_export.php b/db_export.php
index 0274f9259e..af6b816506 100644
--- a/db_export.php
+++ b/db_export.php
@@ -148,6 +148,6 @@ $response = PMA_Response::getInstance();
 $response->addHTML(
     PMA_getExportDisplay(
         'database', $db, $table, $sql_query, $num_tables,
-         $unlim_num_rows, $multi_values
+        $unlim_num_rows, $multi_values
     )
 );
diff --git a/libraries/display_export.lib.php b/libraries/display_export.lib.php
index faaecd4621..61a4b6ebbe 100644
--- a/libraries/display_export.lib.php
+++ b/libraries/display_export.lib.php
@@ -1034,7 +1034,7 @@ function PMA_getHtmlForAliasModalDialog($db = '', $table = '')
  * @return string $html
  */
 function PMA_getExportDisplay(
-    $export_type, $db, $table, $sql_query = '', $num_tables,
+    $export_type, $db, $table, $sql_query, $num_tables,
     $unlim_num_rows, $multi_values
 ) {
     $cfgRelation = PMA_getRelationsParam();
@@ -1043,9 +1043,9 @@ function PMA_getExportDisplay(
         $GLOBALS['single_table'] = $_REQUEST['single_table'];
     }
 
-    require_once './libraries/file_listing.lib.php';
-    require_once './libraries/plugin_interface.lib.php';
-    require_once './libraries/display_export.lib.php';
+    include_once './libraries/file_listing.lib.php';
+    include_once './libraries/plugin_interface.lib.php';
+    include_once './libraries/display_export.lib.php';
 
     /* Scan for plugins */
     /* @var $export_list ExportPlugin[] */
diff --git a/server_export.php b/server_export.php
index 781113ac99..a14e0521ed 100644
--- a/server_export.php
+++ b/server_export.php
@@ -44,6 +44,6 @@ $response = PMA_Response::getInstance();
 $response->addHTML(
     PMA_getExportDisplay(
         'server', $db, $table, $sql_query, $num_tables,
-         $unlim_num_rows, $multi_values
+        $unlim_num_rows, $multi_values
     )
 );
diff --git a/tbl_export.php b/tbl_export.php
index 7b506024b8..4d62c7493e 100644
--- a/tbl_export.php
+++ b/tbl_export.php
@@ -194,6 +194,6 @@ $response = PMA_Response::getInstance();
 $response->addHTML(
     PMA_getExportDisplay(
         'table', $db, $table, $sql_query, $num_tables,
-         $unlim_num_rows, $multi_values
+        $unlim_num_rows, $multi_values
     )
 );