diff --git a/contrib/Vagrantfile b/contrib/Vagrantfile
index e23f065..c070042 100644
--- a/contrib/Vagrantfile
+++ b/contrib/Vagrantfile
@@ -9,7 +9,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
   # Disabling SELinux
   config.vm.provision :shell, :inline => "echo 0 >  /sys/fs/selinux/enforce"
-  config.vm.provision :shell, :inline => "sed 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config"
+  config.vm.provision :shell, :inline => "sed -i 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config"
 
   # Install repos
   config.vm.provision :shell, :inline => "yum-config-manager --add-repo http://yum.surveil.io/centos_7/"