1 files changed, 6 insertions, 6 deletions
diff --git a/src/components/script/dom/document.rs b/src/components/script/dom/document.rs
index 3a0fa2e7f3b..1830936e6bd 100644
--- a/src/components/script/dom/document.rs
+++ b/src/components/script/dom/document.rs
@@ -331,9 +331,9 @@ pub trait DocumentMethods {
     fn Children(&self) -> Temporary<HTMLCollection>;
     fn QuerySelector(&self, selectors: DOMString) -> Fallible<Option<Temporary<Element>>>;
     fn GetOnclick(&self) -> Option<EventHandlerNonNull>;
-    fn SetOnclick(&mut self, listener: Option<EventHandlerNonNull>);
+    fn SetOnclick(&self, listener: Option<EventHandlerNonNull>);
     fn GetOnload(&self) -> Option<EventHandlerNonNull>;
-    fn SetOnload(&mut self, listener: Option<EventHandlerNonNull>);
+    fn SetOnload(&self, listener: Option<EventHandlerNonNull>);
 }
 
 impl<'a> DocumentMethods for JSRef<'a, Document> {
@@ -826,8 +826,8 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
         eventtarget.get_event_handler_common("click")
     }
 
-    fn SetOnclick(&mut self, listener: Option<EventHandlerNonNull>) {
-        let eventtarget: &mut JSRef<EventTarget> = EventTargetCast::from_mut_ref(self);
+    fn SetOnclick(&self, listener: Option<EventHandlerNonNull>) {
+        let eventtarget: &JSRef<EventTarget> = EventTargetCast::from_ref(self);
         eventtarget.set_event_handler_common("click", listener)
     }
 
@@ -836,8 +836,8 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
         eventtarget.get_event_handler_common("load")
     }
 
-    fn SetOnload(&mut self, listener: Option<EventHandlerNonNull>) {
-        let eventtarget: &mut JSRef<EventTarget> = EventTargetCast::from_mut_ref(self);
+    fn SetOnload(&self, listener: Option<EventHandlerNonNull>) {
+        let eventtarget: &JSRef<EventTarget> = EventTargetCast::from_ref(self);
         eventtarget.set_event_handler_common("load", listener)
     }
 }