diff --git a/lib/detect-port.js b/lib/detect-port.js
index 891534a..6dff69d 100644
--- a/lib/detect-port.js
+++ b/lib/detect-port.js
@@ -7,13 +7,13 @@ module.exports = function() {
 
   const promise = new Promise((resolve, reject) => {
     if (!args.length) {
-      reject('wrong number of arguments');
+      return reject('wrong number of arguments');
     }
 
     const port = parseInt(args[0], 10);
 
     if (isNaN(port)) {
-      reject(`wrong type of arguments with: '${args[0]}'`);
+      return reject(`wrong type of arguments with: '${args[0]}'`);
     }
 
     const loop = port => {
@@ -63,9 +63,9 @@ module.exports = function() {
     const cb = args[1];
 
     promise.then(data => {
-      cb.call(this, null, data);
-    }).catch(err => {
-      cb.call(this, err);
+      process.nextTick(cb.bind(null, null, data));
+    }, err => {
+      process.nextTick(cb.bind(null, err));
     });
   } else {
     return promise;
diff --git a/package.json b/package.json
index c4d6997..cc8e59a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "detect-port",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "detect available port",
   "keywords": [
     "detect",