diff --git a/.gitignore b/.gitignore
index b91a4df..d9423e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,6 +43,7 @@
 # Output binaries
 /example/follow
 /example/heartbeat
+/example/heartbeat_timer
 /test/clock
 /test/event
 /test/exception