diff --git a/.gitignore b/.gitignore
index b785247..7bdfc1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules
 npm-debug.log
 tmp
+.idea
\ No newline at end of file
diff --git a/README.md b/README.md
index 7373e14..ade013b 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,12 @@ Default value `0`
 
 Whether to use HTTPS
 
+#### options.force
+Type: `Boolean`
+Default value `true`
+
+Kill other running instances of BrowserStack Local.
+
 ### Usage Examples
 
 #### Custom Options
diff --git a/tasks/browserstack_tunnel.js b/tasks/browserstack_tunnel.js
index bfc98c8..eb387b0 100644
--- a/tasks/browserstack_tunnel.js
+++ b/tasks/browserstack_tunnel.js
@@ -5,7 +5,8 @@ module.exports = function(grunt) {
       accessKey: '',
       hostname: 'localhost',
       port: 3000,
-      sslFlag: 0
+      sslFlag: 0,
+      force: true
     });
 
     var BrowserStackTunnel = require('browserstacktunnel-wrapper');
@@ -15,7 +16,8 @@ module.exports = function(grunt) {
         name: options.hostname,
         port: options.port,
         sslFlag: options.sslFlag
-      }]
+      }],
+      force: options.force
     });
 
     var done = this.async();