diff --git a/lib/fog/openstack/auth/token.rb b/lib/fog/openstack/auth/token.rb
index d8e2cec7..0c33798d 100644
--- a/lib/fog/openstack/auth/token.rb
+++ b/lib/fog/openstack/auth/token.rb
@@ -14,7 +14,7 @@ class StandardError < RuntimeError; end
         class URLError < RuntimeError; end
 
         def self.build(auth, options)
-          if auth[:openstack_identity_api_version] =~ /(v)*2(\.0)*/i ||
+          if auth[:openstack_identity_api_version].to_s =~ /(v)*2(\.0)*/i ||
              auth[:openstack_tenant_id] || auth[:openstack_tenant]
             Fog::OpenStack::Auth::Token::V2.new(auth, options)
           else