diff --git a/plugins/guests/linux/guest.rb b/plugins/guests/linux/guest.rb
index 59d09a608..7e1c9bd87 100644
--- a/plugins/guests/linux/guest.rb
+++ b/plugins/guests/linux/guest.rb
@@ -4,8 +4,7 @@ module VagrantPlugins
   module GuestLinux
     class Guest < Vagrant.plugin("2", :guest)
       def detect?(machine)
-        # TODO: Linux detection
-        false
+        machine.communicate.test("uname -s | grep 'Linux'")
       end
     end
   end