diff --git a/doc/api/core/operators/switchfirst.md b/doc/api/core/operators/switchfirst.md
index ab2eea3c3..7989a1f1e 100644
--- a/doc/api/core/operators/switchfirst.md
+++ b/doc/api/core/operators/switchfirst.md
@@ -26,7 +26,7 @@ var source = Rx.Observable.generateWithRelativeTime(
   });
 
 
-source.exclusive().subscribe(
+source.switchFirst().subscribe(
    function (x) {
     console.log("Next %d", x);
    }, function(e) {