diff --git a/wagtail/wagtailadmin/templates/wagtailadmin/pages/create.html b/wagtail/wagtailadmin/templates/wagtailadmin/pages/create.html
index 87f2fa6fe..230db1181 100644
--- a/wagtail/wagtailadmin/templates/wagtailadmin/pages/create.html
+++ b/wagtail/wagtailadmin/templates/wagtailadmin/pages/create.html
@@ -21,7 +21,7 @@
                         <input type="submit" value="Save as draft" class="button" />
                         <div class="dropdown-toggle icon icon-arrow-up"></div>
                         <ul role="menu">
-                            <li><input type="button" id="action-preview" data-action="{% url 'wagtailadmin_pages_preview_on_create' content_type.app_label content_type.model parent_page.id %}" data-placeholder="{% url 'wagtailadmin_pages_preview_placeholder' %}" data-windowname="verdant_preview_{{ parent_page.id }}_child" value="Preview" class="button" /></li>
+                            <li><input type="button" id="action-preview" data-action="{% url 'wagtailadmin_pages_preview_on_create' content_type.app_label content_type.model parent_page.id %}" data-placeholder="{% url 'wagtailadmin_pages_preview_placeholder' %}" data-windowname="wagtail_preview_{{ parent_page.id }}_child" value="Preview" class="button" /></li>
                             {% if parent_page_perms.can_publish_subpage %}
                                 <li><input type="submit" name="action-publish" value="Publish" class="button" /></li>
                             {% endif %}
diff --git a/wagtail/wagtailadmin/templates/wagtailadmin/pages/edit.html b/wagtail/wagtailadmin/templates/wagtailadmin/pages/edit.html
index 4e081ad63..662ac7ee7 100644
--- a/wagtail/wagtailadmin/templates/wagtailadmin/pages/edit.html
+++ b/wagtail/wagtailadmin/templates/wagtailadmin/pages/edit.html
@@ -45,7 +45,7 @@
                                 <li><input type="submit" name="action-publish" value="Publish" class="button" /></li>
                             {% endif %}
                             <li><input type="submit" name="action-submit" value="Submit for moderation" class="button" /></li>
-                            <li><input type="button" id="action-preview" data-action="{% url 'wagtailadmin_pages_preview_on_edit' page.id %}" data-placeholder="{% url 'wagtailadmin_pages_preview_placeholder' %}" data-windowname="verdant_preview_{{ page.id }}" value="Preview" class="button" /></li>
+                            <li><input type="button" id="action-preview" data-action="{% url 'wagtailadmin_pages_preview_on_edit' page.id %}" data-placeholder="{% url 'wagtailadmin_pages_preview_placeholder' %}" data-windowname="wagtail_preview_{{ page.id }}" value="Preview" class="button" /></li>
                         </ul>
                     </div>
                 </li>