diff --git a/manifests/init.pp b/manifests/init.pp
index 66b872e..738b6b5 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -422,9 +422,7 @@ class ssh (
     fail('ssh::sshd_config_banner must be set to be able to use sshd_banner_content.')
   }
 
-  if $ssh_gssapiauthentication != undef {
-    validate_re($ssh_gssapiauthentication, '^(yes|no)$', "ssh::ssh_gssapiauthentication may be either 'yes' or 'no' and is set to <${ssh_gssapiauthentication}>.")
-  }
+  validate_re($ssh_gssapiauthentication, '^(yes|no)$', "ssh::ssh_gssapiauthentication may be either 'yes' or 'no' and is set to <${ssh_gssapiauthentication}>.")
 
   if $ssh_gssapidelegatecredentials != undef {
     validate_re($ssh_gssapidelegatecredentials, '^(yes|no)$', "ssh::ssh_gssapidelegatecredentials may be either 'yes' or 'no' and is set to <${ssh_gssapidelegatecredentials}>.")
diff --git a/spec/classes/init_spec.rb b/spec/classes/init_spec.rb
index 0d641f6..962fd88 100644
--- a/spec/classes/init_spec.rb
+++ b/spec/classes/init_spec.rb
@@ -2288,7 +2288,7 @@ describe 'ssh' do
         it do
           expect {
             should contain_class('ssh')
-          }.to raise_error(Puppet::Error,/^ssh::ssh_gssapiauthentication may be either 'yes' or 'no' and is set to <#{value.to_s}>./)
+          }.to raise_error(Puppet::Error,/^ssh::ssh_gssapiauthentication may be either 'yes' or 'no' and is set to <#{value.to_s}>\./)
         end
       end
     end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index dc7e9f4..2c6f566 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,2 +1 @@
-require 'rubygems'
 require 'puppetlabs_spec_helper/module_spec_helper'