diff --git a/plugins/guests/smartos/plugin.rb b/plugins/guests/smartos/plugin.rb
index 6f5365af2..dcdd6f7b8 100644
--- a/plugins/guests/smartos/plugin.rb
+++ b/plugins/guests/smartos/plugin.rb
@@ -11,7 +11,7 @@ module VagrantPlugins
         Config
       end
 
-      guest(:smartos)  do
+      guest(:smartos, :solaris)  do
         require_relative "guest"
         Guest
       end
diff --git a/plugins/guests/solaris11/guest.rb b/plugins/guests/solaris11/guest.rb
index f7c46ee57..7d1794176 100644
--- a/plugins/guests/solaris11/guest.rb
+++ b/plugins/guests/solaris11/guest.rb
@@ -8,7 +8,7 @@ module VagrantPlugins
   module GuestSolaris11
     class Guest < Vagrant.plugin("2", :guest)
       def detect?(machine)
-        machine.communicate.test("uname -sr | grep 'SunOS.*5\\.11'")
+        machine.communicate.test("grep 'Solaris 11' /etc/release")
       end
     end
   end