diff --git a/packages/core/event-emitter.js b/packages/core/event-emitter.js
index bd564dc..f27fba4 100644
--- a/packages/core/event-emitter.js
+++ b/packages/core/event-emitter.js
@@ -53,7 +53,7 @@ export function EventEmitterMixin(Superclass) {
         }
         // Slow path...
         else {
-          fn.apply(that, args.slice(offset));
+          fn.apply(that, args);
         }
       }
     }