diff --git a/packages/web-twig/src/Resources/components/Breadcrumbs/Breadcrumbs.twig b/packages/web-twig/src/Resources/components/Breadcrumbs/Breadcrumbs.twig
index bdaff80f97..6f62d7331a 100644
--- a/packages/web-twig/src/Resources/components/Breadcrumbs/Breadcrumbs.twig
+++ b/packages/web-twig/src/Resources/components/Breadcrumbs/Breadcrumbs.twig
@@ -30,7 +30,7 @@
                         <Link href="{{ item.url }}" color="primary" isUnderlined>{{ _goBackTitle }}</Link>
                     </li>
                 {% endif %}
-                <li class="{{ [_displayNoneClassName, _displayTabletFlexClassName] | join(' ') }}">
+                <li class="{{ classProp([_displayNoneClassName, _displayTabletFlexClassName]) }}">
                     {% if loop.index0 is not same as(0) %}
                         <Icon name="chevron-right" />
                     {% endif %}
diff --git a/packages/web-twig/src/Resources/components/FileUploader/FileUploaderInput.twig b/packages/web-twig/src/Resources/components/FileUploader/FileUploaderInput.twig
index dfb90f0b70..8a02dde7e2 100644
--- a/packages/web-twig/src/Resources/components/FileUploader/FileUploaderInput.twig
+++ b/packages/web-twig/src/Resources/components/FileUploader/FileUploaderInput.twig
@@ -80,7 +80,7 @@
     <div class="{{ _dropzoneClassName }}" data-spirit-element="dropZone">
         <Icon name="{{ _iconName }}" isReusable={false} />
         <label for="{{ _id }}" class="{{ _dropzoneLabelClassName }}">
-            <span class="{{ [_linkClassName, _linkPrimaryClassName, _linkUnderlinedClassName] | join(' ') }}">
+            <span class="{{ classProp([_linkClassName, _linkPrimaryClassName, _linkUnderlinedClassName]) }}">
                 {{- _pickAFileText -}}
             </span>
             <span class="{{  _dragAndDropLabelClassName }}">