diff --git a/ChangeLog b/ChangeLog
index fe21f3813b..afde693890 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21,6 +21,7 @@ phpMyAdmin - ChangeLog
 - bug #4593 Manual "SELECT" doesn't change active table
 - bug #4623 Incomplete PHP OpenSSL support
 - bug #4626 Ctrl + click on a column not in sort triggers a server call to erroneous url
+- bug #4625 "Insufficient space to save the file" on export SQL to file on server
 
 4.3.0.0 (2014-12-05)
 + rfe #1502 Smart sorting for int keys
diff --git a/libraries/export.lib.php b/libraries/export.lib.php
index 39aa5ab9a2..f73d33d3d7 100644
--- a/libraries/export.lib.php
+++ b/libraries/export.lib.php
@@ -111,7 +111,7 @@ function PMA_exportOutputHandler($line)
                 }
                 if ($GLOBALS['save_on_server']) {
                     $write_result = @fwrite($GLOBALS['file_handle'], $dump_buffer);
-                    if ($write_result != /*overload*/mb_strlen($dump_buffer)) {
+                    if ($write_result != strlen($dump_buffer)) {
                         $GLOBALS['message'] = PMA_Message::error(
                             __('Insufficient space to save the file %s.')
                         );
@@ -143,7 +143,7 @@ function PMA_exportOutputHandler($line)
             if ($GLOBALS['save_on_server'] && /*overload*/mb_strlen($line) > 0) {
                 $write_result = @fwrite($GLOBALS['file_handle'], $line);
                 if (! $write_result
-                    || $write_result != /*overload*/mb_strlen($line)
+                    || $write_result != strlen($line)
                 ) {
                     $GLOBALS['message'] = PMA_Message::error(
                         __('Insufficient space to save the file %s.')
@@ -365,7 +365,7 @@ function PMA_closeExportFile($file_handle, $dump_buffer, $save_filename)
     $write_result = @fwrite($file_handle, $dump_buffer);
     fclose($file_handle);
     if (/*overload*/mb_strlen($dump_buffer) > 0
-        && (! $write_result || $write_result != /*overload*/mb_strlen($dump_buffer))
+        && (! $write_result || $write_result != strlen($dump_buffer))
     ) {
         $message = new PMA_Message(
             __('Insufficient space to save the file %s.'),