diff --git a/datamodel/itop-attachments/main.attachments.php b/datamodel/itop-attachments/main.attachments.php
index cc6b307307..dd94643de4 100644
--- a/datamodel/itop-attachments/main.attachments.php
+++ b/datamodel/itop-attachments/main.attachments.php
@@ -263,7 +263,7 @@ EOF
 		/*
 			prepareing ajax file upload
 			url: the url of script file handling the uploaded files
-                        fileElementId: the file type of input element id and it will be the index of  $_FILES Array()
+                        fileElementId: the file type of input element id and it will be the index of  \$_FILES Array()
 			dataType: it support json, xml
 			secureuri:use secure protocol
 			success: call back function when the ajax complete