diff --git a/test/unit/plugins/provisioners/ansible/provisioner_test.rb b/test/unit/plugins/provisioners/ansible/provisioner_test.rb
index db562201d..2c8c27fb4 100644
--- a/test/unit/plugins/provisioners/ansible/provisioner_test.rb
+++ b/test/unit/plugins/provisioners/ansible/provisioner_test.rb
@@ -292,11 +292,11 @@ VF
 
       it "adds host variables (given in Hash format) to the generated inventory" do
         config.host_vars = {
-          machine1: {"http_port" => 80, "maxRequestsPerChild" => 808}
+          machine1: {"http_port" => 80, "comments" => "'some text with spaces'"}
         }
         expect(Vagrant::Util::Subprocess).to receive(:execute).with { |*args|
           inventory_content = File.read(generated_inventory_file)
-          expect(inventory_content).to match("^" + Regexp.quote(machine.name) + ".+http_port=80 maxRequestsPerChild=808")
+          expect(inventory_content).to match("^" + Regexp.quote(machine.name) + ".+http_port=80 comments='some text with spaces'$")
         }
       end
 
diff --git a/website/source/docs/provisioning/ansible_common.html.md b/website/source/docs/provisioning/ansible_common.html.md
index 2ed3b4e72..d53639613 100644
--- a/website/source/docs/provisioning/ansible_common.html.md
+++ b/website/source/docs/provisioning/ansible_common.html.md
@@ -93,6 +93,7 @@ Some of these options are for advanced usage only and should not be used unless
     ansible.host_vars = {
       "host1" => {"http_port" => 80,
                   "maxRequestsPerChild" => 808},
+                  "comments" => "'text with spaces'",
       "host2" => {"http_port" => 303,
                   "maxRequestsPerChild" => 909}
     }