diff --git a/packaging/ubuntu/docker.upstart b/packaging/ubuntu/docker.upstart
index f4d2fbe922..143be03402 100644
--- a/packaging/ubuntu/docker.upstart
+++ b/packaging/ubuntu/docker.upstart
@@ -5,4 +5,6 @@ stop on runlevel [!2345]
 
 respawn
 
-exec /usr/bin/docker -d
+script
+    /usr/bin/docker -d
+end script