diff --git a/js/src/xpconnect/src/dom_quickstubs.qsconf b/js/src/xpconnect/src/dom_quickstubs.qsconf
index 0c83b39d71b..d85a156dc80 100644
--- a/js/src/xpconnect/src/dom_quickstubs.qsconf
+++ b/js/src/xpconnect/src/dom_quickstubs.qsconf
@@ -811,7 +811,7 @@ customMethodCalls = {
         'thisType': 'nsINode',
         'canFail': False
         },
-    'nsIDOM3Node_IsSameNode': {
+    'nsIDOMNode_IsSameNode': {
         'thisType': 'nsINode',
         'arg0Type': 'nsINode',
         'code': '    PRBool result = self == arg0;',