diff --git a/bin/package.js b/bin/package.js
index 2fa97387..09329495 100755
--- a/bin/package.js
+++ b/bin/package.js
@@ -103,7 +103,7 @@ var all = {
 
 var darwin = {
   // Build for OS X
-  platform: 'darwin',
+  platform: 'mas',
 
   // Build 64 bit binaries only.
   arch: 'x64',
@@ -211,6 +211,8 @@ function buildDarwin (cb) {
       }
     ]
 
+    infoPlist.ElectronTeamID = '5MAMC8G3L8'
+
     fs.writeFileSync(infoPlistPath, plist.build(infoPlist))
 
     // Copy torrent file icon into app bundle
@@ -248,8 +250,9 @@ function buildDarwin (cb) {
        */
       var signOpts = {
         app: appPath,
-        platform: 'darwin',
-        verbose: true
+        entitlements: path.join(config.STATIC_PATH, 'parent.entitlements'),
+        'entitlements-inherit': path.join(config.STATIC_PATH, 'child.entitlements'),
+        platform: 'mas'
       }
 
       console.log('OS X: Signing app...')
diff --git a/main/index.js b/main/index.js
index 83a3f5dc..5994e586 100644
--- a/main/index.js
+++ b/main/index.js
@@ -26,14 +26,14 @@ if (process.platform === 'win32') {
   argv = argv.filter((arg) => arg.indexOf('--squirrel') === -1)
 }
 
-if (!shouldQuit) {
-  // Prevent multiple instances of app from running at same time. New instances signal
-  // this instance and quit.
-  shouldQuit = app.makeSingleInstance(onAppOpen)
-  if (shouldQuit) {
-    app.quit()
-  }
-}
+// if (!shouldQuit) {
+//   // Prevent multiple instances of app from running at same time. New instances signal
+//   // this instance and quit.
+//   shouldQuit = app.makeSingleInstance(onAppOpen)
+//   if (shouldQuit) {
+//     app.quit()
+//   }
+// }
 
 if (!shouldQuit) {
   init()
diff --git a/static/child.entitlements b/static/child.entitlements
new file mode 100644
index 00000000..d8dc69e8
--- /dev/null
+++ b/static/child.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.inherit</key>
+    <true/>
+  </dict>
+</plist>
diff --git a/static/parent.entitlements b/static/parent.entitlements
new file mode 100644
index 00000000..8c5d1f73
--- /dev/null
+++ b/static/parent.entitlements
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.files.downloads.read-write</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-write</key>
+    <true/>
+    <key>com.apple.security.network.client</key>
+    <true/>
+    <key>com.apple.security.network.server</key>
+    <true/>
+    <key>com.apple.security.application-groups</key>
+    <array>
+      <string>5MAMC8G3L8.io.webtorrent.webtorrent</string>
+    </array>
+  </dict>
+</plist>