diff --git a/components/script/dom/event.rs b/components/script/dom/event.rs
index bb87993a3e7..d6dc2cfe00f 100644
--- a/components/script/dom/event.rs
+++ b/components/script/dom/event.rs
@@ -77,7 +77,7 @@ impl Event {
             phase: Cell::new(PhaseNone),
             type_: DOMRefCell::new("".to_string()),
             canceled: Cell::new(false),
-            cancelable: Cell::new(true),
+            cancelable: Cell::new(false),
             bubbles: Cell::new(false),
             trusted: Cell::new(false),
             dispatching: Cell::new(false),