diff --git a/fah/FAHControl.py b/fah/FAHControl.py
index 5056d4f..223f5a8 100644
--- a/fah/FAHControl.py
+++ b/fah/FAHControl.py
@@ -1333,6 +1333,7 @@ class FAHControl(SingleAppServer):
         if not (len(cmd) and len(cmd[0])): cmd = ['FAHViewer']
 
         if sys.platform == 'darwin':
+            if not cmd[0].endswith('.app'): cmd[0] += '.app'
             cmd = ['/usr/bin/open', '-a', cmd[0], '--args'] + cmd[1:]
 
         if fullscreen: cmd.append('--fullscreen')
diff --git a/osx/entitlements.plist b/osx/entitlements.plist
new file mode 100644
index 0000000..29382ff
--- /dev/null
+++ b/osx/entitlements.plist
@@ -0,0 +1,9 @@
+<?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.cs.allow-unsigned-executable-memory</key>
+    <true/>
+</dict>
+</plist>
+
diff --git a/setup.py b/setup.py
index 8c17663..3fada6d 100644
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,7 @@ if sys.platform == 'darwin':
             argv_emulation = False,
             includes = 'cairo, pango, pangocairo, atk, gobject, gio',
             iconfile = 'images/FAHControl.icns',
-            resources = ['/opt/local/share/themes'],
+            resources = ['/opt/local/share/themes', 'osx/entitlements.plist'],
             plist = plist,
             )