Doc fixed
diff --git a/kotlinx-coroutines-core/src/main/kotlin/kotlinx/coroutines/experimental/Job.kt b/kotlinx-coroutines-core/src/main/kotlin/kotlinx/coroutines/experimental/Job.kt
index 8c06a34..0ce3d75 100644
--- a/kotlinx-coroutines-core/src/main/kotlin/kotlinx/coroutines/experimental/Job.kt
+++ b/kotlinx-coroutines-core/src/main/kotlin/kotlinx/coroutines/experimental/Job.kt
@@ -178,7 +178,7 @@
  *
  * This is a shortcut for the following code with slightly more efficient implementation (one fewer object created).
  * ```
- * onCompletion { future.cancel(true) }
+ * onCompletion { future.cancel(false) }
  * ```
  */
 public fun Job.cancelFutureOnCompletion(future: Future<*>): Job.Registration =