diff --git a/lib/index.js b/lib/index.js
index 23fb706..91bad76 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -22,7 +22,7 @@ export function createDuck(name, app) {
         type,
       };
 
-      if (payload) action.payload = payload;
+      if (payload !== undefined) action.payload = payload;
 
       return action;
     };