diff --git a/src/ConstantTimeDispatcher.js b/src/ConstantTimeDispatcher.js
index 6c2c3266aa..265ee11fd4 100644
--- a/src/ConstantTimeDispatcher.js
+++ b/src/ConstantTimeDispatcher.js
@@ -47,7 +47,7 @@ class ConstantTimeDispatcher {
 
     dispatch(type, arg, params) {
         if (!this.listeners[type] || !this.listeners[type][arg]) {
-            //console.warn("No registered listeners for dispatch (type=" + type + ", arg=" + arg + ")");
+            console.warn("No registered listeners for dispatch (type=" + type + ", arg=" + arg + ")");
             return;
         }
         this.listeners[type][arg].forEach(listener=>{