diff --git a/app/dashboard/templates/dashboard/custom_alias.html b/app/dashboard/templates/dashboard/custom_alias.html
index b654feb3..984c45f6 100644
--- a/app/dashboard/templates/dashboard/custom_alias.html
+++ b/app/dashboard/templates/dashboard/custom_alias.html
@@ -33,7 +33,7 @@
                    type="text"
                    pattern="[0-9a-z-_.]{1,}"
                    maxlength="40"
-                   title="Only lowercase letters, dots, numbers, dashes (-) and underscores (_) are currently supported."
+                   data-bouncer-message="Only lowercase letters, dots, numbers, dashes (-) and underscores (_) are currently supported."
                    placeholder="Alias prefix, for example newsletter.com-123_xyz"
                    autofocus required>
 
diff --git a/app/oauth/templates/oauth/authorize.html b/app/oauth/templates/oauth/authorize.html
index 7b538b41..3abfb2c1 100644
--- a/app/oauth/templates/oauth/authorize.html
+++ b/app/oauth/templates/oauth/authorize.html
@@ -103,7 +103,7 @@
                          type="text"
                          pattern="[0-9a-z-_]{1,}"
                          maxlength="40"
-                         title="Only lowercase letters, dots, numbers, dashes (-) and underscores (_) are currently supported."
+                         data-bouncer-message="Only lowercase letters, dots, numbers, dashes (-) and underscores (_) are currently supported."
                          placeholder="email alias"
                          autofocus>
                 </div>
@@ -202,3 +202,10 @@
     </div>
   </form>
 {% endblock %}
+
+{% block script %}
+  <script>
+    // init bouncer
+    new Bouncer('form');
+  </script>
+{% endblock %}
\ No newline at end of file