diff --git a/AsyncFunction.md b/AsyncFunction.md
index c46f469..3e071bb 100644
--- a/AsyncFunction.md
+++ b/AsyncFunction.md
@@ -39,7 +39,7 @@ function _async_sub_01(args) {
 }
 
 function main(args) {
-    if (!AsyncFunction.bind(exports, args) {
+    if (!AsyncFunction.bind(exports, args)) {
         onShoutcut(args);
     }
 }