diff --git a/package.json b/package.json
index f84ce01..47d5cdd 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "publishConfig": {
     "access": "public"
   },
+  "sideEffects": false,
   "main": "build/cjs/index",
   "typings": "build/es/index",
   "module": "build/es/index",
@@ -15,7 +16,7 @@
     "url": "https://github.com/teclone/react-use-effect-cleaner.git"
   },
   "files": [
-    "build"
+    "./build"
   ],
   "scripts": {
     "build": "rollup-all --formats es,cjs,iife",
diff --git a/src/constants.ts b/src/constants.ts
new file mode 100644
index 0000000..5444758
--- /dev/null
+++ b/src/constants.ts
@@ -0,0 +1,3 @@
+export const noop = (...args: Array<any>) => {
+  // do nothing
+};
diff --git a/src/index.ts b/src/index.ts
index 7f01865..dbed120 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,5 @@
 import type { CancelTokenSource } from 'axios';
+import { noop } from './constants';
 
 export interface CreateEffectCleanerOpts {
   /**
@@ -24,6 +25,12 @@ export interface CreateEffectCleanerOpts {
   intervalIds?: {
     [p: string]: number;
   };
+
+  /**
+   * called when running effects cleanup
+   * @returns
+   */
+  callback?: () => void;
 }
 
 /**
@@ -35,8 +42,13 @@ export const createEffectCleaner = <T>(
   opts?: CreateEffectCleanerOpts
 ) => {
   let _stalled = false;
-  const { abortController, cancelTokenSource, intervalIds, timeoutIds } =
-    opts || {};
+  const {
+    abortController,
+    cancelTokenSource,
+    intervalIds,
+    timeoutIds,
+    callback = noop,
+  } = opts || {};
 
   const handler = {
     apply(stateModifier, thisArg, argArray) {
@@ -87,6 +99,8 @@ export const createEffectCleaner = <T>(
         clearTimeout(timeoutIds[key]);
       });
     }
+
+    callback();
   };
 
   return proxies;