diff --git a/src/components/script/dom/bindings/codegen/CodegenRust.py b/src/components/script/dom/bindings/codegen/CodegenRust.py
index c251aa67363..a749bbce65e 100644
--- a/src/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/src/components/script/dom/bindings/codegen/CodegenRust.py
@@ -1966,7 +1966,7 @@ class CGGetPerInterfaceObject(CGAbstractMethod):
   assert!(((*JS_GetClass(aGlobal)).flags & JSCLASS_DOM_GLOBAL) != 0);
 
   /* Check to see whether the interface objects are already installed */
-  let protoOrIfaceArray: *mut *mut JSObject = GetProtoOrIfaceArray(aGlobal) as *mut *mut JSObject;
+  let protoOrIfaceArray = GetProtoOrIfaceArray(aGlobal);
   let cachedObject: *mut JSObject = *protoOrIfaceArray.offset(%s as int);
   if cachedObject.is_null() {
     let tmp: *mut JSObject = CreateInterfaceObjects(aCx, aGlobal, aReceiver);
diff --git a/src/components/script/dom/bindings/utils.rs b/src/components/script/dom/bindings/utils.rs
index 692e8bc4e61..f23013e203a 100644
--- a/src/components/script/dom/bindings/utils.rs
+++ b/src/components/script/dom/bindings/utils.rs
@@ -206,10 +206,10 @@ pub struct DOMJSClass {
     pub dom_class: DOMClass
 }
 
-pub fn GetProtoOrIfaceArray(global: *mut JSObject) -> **mut JSObject {
+pub fn GetProtoOrIfaceArray(global: *mut JSObject) -> *mut *mut JSObject {
     unsafe {
         assert!(((*JS_GetClass(global)).flags & JSCLASS_DOM_GLOBAL) != 0);
-        JS_GetReservedSlot(global, DOM_PROTOTYPE_SLOT).to_private() as **mut JSObject
+        JS_GetReservedSlot(global, DOM_PROTOTYPE_SLOT).to_private() as *mut *mut JSObject
     }
 }