diff --git a/main/inc/lib/fileUpload.lib.php b/main/inc/lib/fileUpload.lib.php
index 92379cf300..b1e49e31bc 100755
--- a/main/inc/lib/fileUpload.lib.php
+++ b/main/inc/lib/fileUpload.lib.php
@@ -38,9 +38,7 @@ function php2phps($file_name)
  */
 function htaccess2txt($filename)
 {
-    $filename = strtolower($filename);
-
-    return str_replace('.htaccess', 'htaccess.txt', $filename);
+    return str_ireplace('.htaccess', 'htaccess.txt', $filename);
 }
 
 /**