diff --git a/docs/generator.md b/docs/generator.md
index 209c8ac..0a30b50 100644
--- a/docs/generator.md
+++ b/docs/generator.md
@@ -130,7 +130,7 @@ var flat = function* (a) {
     } else {
       yield item;
     }
-  }
+  });
 };
 
 for (var f of flat(arr)){