diff --git a/lib/vagrant/vm.rb b/lib/vagrant/vm.rb
index f5c458d8f..d6a49fc55 100644
--- a/lib/vagrant/vm.rb
+++ b/lib/vagrant/vm.rb
@@ -56,7 +56,7 @@ module Vagrant
         raise Errors::VMSystemError.new(:_key => :invalid_class, :system => system.to_s) if !@system.is_a?(Systems::Base)
       elsif system.is_a?(Symbol)
         # Hard-coded internal systems
-        mapping = { :linux => Systems::Linux }
+        mapping = { :linux => Systems::Linux, :solaris => Systems::Solaris }
 
         raise Errors::VMSystemError.new(:_key => :unknown_type, :system => system.to_s) if !mapping.has_key?(system)
         @system = mapping[system].new(self)