diff --git a/docs/promise.md b/docs/promise.md
index ee6a7aa..758bb2e 100644
--- a/docs/promise.md
+++ b/docs/promise.md
@@ -79,7 +79,7 @@ let promise = new Promise(function(resolve, reject) {
 });
 
 promise.then(function() {
-  console.log('resolved.');
+  console.log('resolved');
 });
 
 console.log('Hi!');