diff --git a/src/main/java/io/reactivex/rxjava3/core/Flowable.java b/src/main/java/io/reactivex/rxjava3/core/Flowable.java
index dab6c437d7..73ea226256 100644
--- a/src/main/java/io/reactivex/rxjava3/core/Flowable.java
+++ b/src/main/java/io/reactivex/rxjava3/core/Flowable.java
@@ -114,7 +114,7 @@
  *         Thread.sleep(1000);
  *
  *         // the consumer might have cancelled the flow
- *         if (emitter.isCancelled() {
+ *         if (emitter.isCancelled()) {
  *             return;
  *         }
  *