diff --git a/docs/qtpromise/qpromise/then.md b/docs/qtpromise/qpromise/then.md
index 859807c..31a8312 100644
--- a/docs/qtpromise/qpromise/then.md
+++ b/docs/qtpromise/qpromise/then.md
@@ -95,5 +95,5 @@ auto output = input.then([](int res) {
 // output.isRejected() is true
 ```
 
-If an handler returns a promise (or QFuture), the `output` promise is delayed and will be resolved
+If a handler returns a promise (or QFuture), the `output` promise is delayed and will be resolved
 by the returned promise.