diff --git a/resources/static/dialog/js/modules/actions.js b/resources/static/dialog/js/modules/actions.js
index d778612926b9bf767ff915901ce709ea3de474b4..aec8e96a38ca1abfa54e69e683aa2bd7f2134c99 100644
--- a/resources/static/dialog/js/modules/actions.js
+++ b/resources/static/dialog/js/modules/actions.js
@@ -37,7 +37,8 @@ BrowserID.Modules.Actions = (function() {
       verifier: verifier,
       verificationMessage: message,
       password: password,
-      siteName: options.siteName
+      siteName: options.siteName,
+      email: options.email
     });
     controller.startCheck();
   }
diff --git a/resources/static/dialog/js/modules/check_registration.js b/resources/static/dialog/js/modules/check_registration.js
index 3f6c0453d6cd53d49b5aecf5917cb270084e3fa6..29094a1dcfd4bc7749ed50db4616f3d4baaa46c3 100644
--- a/resources/static/dialog/js/modules/check_registration.js
+++ b/resources/static/dialog/js/modules/check_registration.js
@@ -15,6 +15,8 @@ BrowserID.Modules.CheckRegistration = (function() {
     start: function(options) {
       var self=this;
       options = options || {};
+
+      self.checkRequired(options, "email", "siteName");
       var templateData = {
         email: options.email,
         required: options.required,
diff --git a/resources/static/test/cases/dialog/js/modules/actions.js b/resources/static/test/cases/dialog/js/modules/actions.js
index e06e7dd88b9a9f02d58c0e34756af163327efdf2..3f98fc81b8d968879c1c34738a00b4eab5500111 100644
--- a/resources/static/test/cases/dialog/js/modules/actions.js
+++ b/resources/static/test/cases/dialog/js/modules/actions.js
@@ -75,12 +75,12 @@
   });
 
   asyncTest("doConfirmUser - start the check_registration service", function() {
-    testActionStartsModule("doConfirmUser", {email: TEST_EMAIL},
+    testActionStartsModule("doConfirmUser", {email: TEST_EMAIL, siteName: "Unit Test Site"},
       "check_registration");
   });
 
   asyncTest("doConfirmEmail - start the check_registration service", function() {
-    testActionStartsModule("doConfirmEmail", {email: TEST_EMAIL},
+    testActionStartsModule("doConfirmEmail", {email: TEST_EMAIL, siteName: "Unit Test Site"},
       "check_registration");
   });
 
diff --git a/resources/static/test/cases/dialog/js/modules/check_registration.js b/resources/static/test/cases/dialog/js/modules/check_registration.js
index 42964fadbaa3d96a3785e11807d17ee26710710b..82da23a350875070a5a3b925341c19fa0d5e3f29 100644
--- a/resources/static/test/cases/dialog/js/modules/check_registration.js
+++ b/resources/static/test/cases/dialog/js/modules/check_registration.js
@@ -19,7 +19,8 @@
       email: "registered@testuser.com",
       verifier: verifier,
       verificationMessage: message,
-      required: required
+      required: required,
+      siteName: "Unit Test Site"
     });
   }