diff --git a/phpBB/templates/subSilver/memberlist_body.html b/phpBB/templates/subSilver/memberlist_body.html
index bf467b65f9..e914c62445 100644
--- a/phpBB/templates/subSilver/memberlist_body.html
+++ b/phpBB/templates/subSilver/memberlist_body.html
@@ -6,7 +6,7 @@
 <!--
 function insert_user(user)
 {
-	opener.document.forms[{S_FORM_NAME}].{S_FIELD_NAME}.value = ( opener.document.forms[{S_FORM_NAME}].{S_FIELD_NAME}.value.length && opener.document.forms[{S_FORM_NAME}].{S_FIELD_NAME}.type == "textarea" ) ? opener.document.forms[{S_FORM_NAME}].{S_FIELD_NAME}.value + "\n" + user : user;
+	opener.document.forms['{S_FORM_NAME}'].{S_FIELD_NAME}.value = ( opener.document.forms['{S_FORM_NAME}'].{S_FIELD_NAME}.value.length && opener.document.forms['{S_FORM_NAME}'].{S_FIELD_NAME}.type == "textarea" ) ? opener.document.forms['{S_FORM_NAME}'].{S_FIELD_NAME}.value + "\n" + user : user;
 }
 
 function insert_marked(users)