diff --git a/modules/file/file.controller.php b/modules/file/file.controller.php
index 6c4c38a8e..1fc017e6b 100644
--- a/modules/file/file.controller.php
+++ b/modules/file/file.controller.php
@@ -302,7 +302,7 @@ class fileController extends file
 
 		$file_size = $file_obj->file_size;
 		$filename = $file_obj->source_filename;
-		if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE || (strpos($_SERVER['HTTP_USER_AGENT'], 'Windows') !== FALSE && strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== FALSE && strpos($_SERVER['HTTP_USER_AGENT'], 'rv') !== FALSE))
+		if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE || (strpos($_SERVER['HTTP_USER_AGENT'], 'Windows') !== FALSE && strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== FALSE && strpos($_SERVER['HTTP_USER_AGENT'], 'rv:') !== FALSE))
 		{
 			$filename = rawurlencode($filename);
 			$filename = preg_replace('/\./', '%2e', $filename, substr_count($filename, '.') - 1);