diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/lightbox_controller.js b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/lightbox_controller.js
index c5006c52..780683c1 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/lightbox_controller.js
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/lightbox_controller.js
@@ -5,22 +5,23 @@ export default class extends Controller {
 
     static targets = [ 'thumb' ]
 
-    static values = { url: String, height: String }
+    static values = { url: String, height: String, type: String }
 
     connect() {
         let elements = []
+        let type = this.hasTypeValue ? this.typeValue : 'image'
         if (this.hasUrlValue) {
-            let element = { href: this.urlValue }
+            let element = { href: this.urlValue, type }
             if (this.hasHeightValue) {
                 element.height = this.heightValue
             }
             elements.push(element)
         } else if (this.element.hasAttribute('href')) {
-            let element = { href: this.element.href }
+            let element = { href: this.element.href, type }
             elements.push(element)
         } else {
             this.thumbTargets.forEach(thumb => {
-                let element = { href: thumb.href }
+                let element = { href: thumb.href, type }
                 let caption = this.element.hasAttribute('data-lightbox-caption') ? this.element.dataset.lightboxCaption : null
                 if (null !== caption) {
                     element.title = caption
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Partials/Product/Details.html b/public/typo3conf/ext/ep_theme/Resources/Private/Partials/Product/Details.html
index 5214fe50..0eda05d1 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Partials/Product/Details.html
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Partials/Product/Details.html
@@ -16,6 +16,7 @@
                 data-controller="lightbox"
                 data-lightbox-height-value="85vh"
                 data-lightbox-url-value="{f:uri.action(action: 'index', controller: 'GroupsPrice', arguments: '{hotel: hotel}', pageUid: settings.groupsPricePopupPageUid)}"
+                data-lightbox-type-value="external"
                 data-action="lightbox#open">
             Preisberechnung
         </button>