diff --git a/lib/interrupt.js b/lib/interrupt.js
index 4c910d3..50fd645 100644
--- a/lib/interrupt.js
+++ b/lib/interrupt.js
@@ -85,11 +85,11 @@ class Interrupt extends EventEmitter {
   }
 
   start() {
-    this.clear().then(() => this.poller.add(this.valuefd, Epoll.EPOLLPRI | Epoll.EPOLLONESHOT));
+    return this.clear().then(() => this.poller.add(this.valuefd, Epoll.EPOLLPRI | Epoll.EPOLLONESHOT));
   }
 
   reset() {
-    this.clear().then(() => this.poller.modify(this.valuefd, Epoll.EPOLLPRI | Epoll.EPOLLONESHOT));
+    return this.clear().then(() => this.poller.modify(this.valuefd, Epoll.EPOLLPRI | Epoll.EPOLLONESHOT));
   }
 
   stop() {