diff --git a/src/internal/operators/switchMap.ts b/src/internal/operators/switchMap.ts
index b8b9cfb722..4c18328f99 100644
--- a/src/internal/operators/switchMap.ts
+++ b/src/internal/operators/switchMap.ts
@@ -46,6 +46,7 @@ export function switchMap<T, R, O extends ObservableInput<any>>(project: (value:
  * // outputs
  * // 1
  * // 1
+ * // 1
  * // 2
  * // 4
  * // 8