diff --git a/mephisto/abstractions/providers/mturk/wrap_crowd_source.js b/mephisto/abstractions/providers/mturk/wrap_crowd_source.js
index d953f1cd4..fcbf9fb7b 100644
--- a/mephisto/abstractions/providers/mturk/wrap_crowd_source.js
+++ b/mephisto/abstractions/providers/mturk/wrap_crowd_source.js
@@ -69,6 +69,8 @@ function handleSubmitToProvider(task_data) {
   HTMLFormElement.prototype.submit.call(form);
 }
 
+const events = eventEmitter();
+
 window._MEPHISTO_CONFIG_ = window._MEPHISTO_CONFIG_ || {};
 window._MEPHISTO_CONFIG_.EVENT_EMITTER = events;
 
diff --git a/mephisto/abstractions/providers/mturk_sandbox/wrap_crowd_source.js b/mephisto/abstractions/providers/mturk_sandbox/wrap_crowd_source.js
index 50ce909dc..df6a557ce 100644
--- a/mephisto/abstractions/providers/mturk_sandbox/wrap_crowd_source.js
+++ b/mephisto/abstractions/providers/mturk_sandbox/wrap_crowd_source.js
@@ -69,6 +69,8 @@ function handleSubmitToProvider(task_data) {
   HTMLFormElement.prototype.submit.call(form);
 }
 
+const events = eventEmitter();
+
 window._MEPHISTO_CONFIG_ = window._MEPHISTO_CONFIG_ || {};
 window._MEPHISTO_CONFIG_.EVENT_EMITTER = events;