diff --git a/spec/unit/provider/package/puppetserver_gem_spec.rb b/spec/unit/provider/package/puppetserver_gem_spec.rb
index 69f6c3a815e..73c01a90da7 100644
--- a/spec/unit/provider/package/puppetserver_gem_spec.rb
+++ b/spec/unit/provider/package/puppetserver_gem_spec.rb
@@ -77,7 +77,7 @@
 
       it "raises if given an invalid URI" do
         resource[:source] = 'h;ttp://rubygems.com'
-        expect { provider.install }.to raise_error(Puppet::Error, /Invalid source '': bad URI\(is not URI\?\)/)
+        expect { provider.install }.to raise_error(Puppet::Error, /Invalid source '': bad URI \(is not URI\?\)/)
       end
     end
   end