diff --git a/watch/watch-tests.ts b/watch/watch-tests.ts
index 4888d41e2e..d6be4092dc 100644
--- a/watch/watch-tests.ts
+++ b/watch/watch-tests.ts
@@ -24,6 +24,7 @@ watch.watchTree(str, (f: any, curr: fs.Stats, prev: fs.Stats) => {
 watch.watchTree(str, opts, (f: any, curr: fs.Stats, prev: fs.Stats) => {
 
 });
+watch.unwatchTree(str);
 watch.createMonitor(str, (monitor: watch.Monitor) => {
 
 });
diff --git a/watch/watch.d.ts b/watch/watch.d.ts
index d011b11f76..d80ec2e51d 100644
--- a/watch/watch.d.ts
+++ b/watch/watch.d.ts
@@ -30,6 +30,7 @@ declare module "watch" {
 
 	export function watchTree(root: string, callback: (f: any, curr: fs.Stats, prev: fs.Stats) => void): void;
 	export function watchTree(root: string, options: Options, callback: (f: any, curr: fs.Stats, prev: fs.Stats) => void): void;
+	export function unwatchTree(root: string): void;
 	export function createMonitor(root: string, callback: (monitor: Monitor) => void): void;
 	export function createMonitor(root: string, options: Options, callback: (monitor: Monitor) => void): void;
 }