diff --git a/src/ResizeSensor.d.ts b/src/ResizeSensor.d.ts
index 8599850..fe5bb03 100644
--- a/src/ResizeSensor.d.ts
+++ b/src/ResizeSensor.d.ts
@@ -1,5 +1,6 @@
 declare class ResizeSensor {
     constructor(element: (Element | Element[]), callback: Function);
+    detach(callback: Function): void;
 }
 
 export = ResizeSensor;