diff --git a/src/Umbraco.Web.UI.Client/src/views/components/upload/umb-file-dropzone.html b/src/Umbraco.Web.UI.Client/src/views/components/upload/umb-file-dropzone.html
index c99655b7fc..a379a05829 100644
--- a/src/Umbraco.Web.UI.Client/src/views/components/upload/umb-file-dropzone.html
+++ b/src/Umbraco.Web.UI.Client/src/views/components/upload/umb-file-dropzone.html
@@ -8,7 +8,7 @@
         ng-model="filesHolder"
         ngf-change="handleFiles($files, $event)"
         class="dropzone"
-        ngf-drag-over-class="drag-over"
+        ngf-drag-over-class="'drag-over'"
         ngf-multiple="true"
         ngf-allow-dir="true"
         ngf-pattern="{{ accept }}"
diff --git a/src/Umbraco.Web.UI.Client/src/views/packages/views/install-local.html b/src/Umbraco.Web.UI.Client/src/views/packages/views/install-local.html
index 6d95bcafa7..718992c25a 100644
--- a/src/Umbraco.Web.UI.Client/src/views/packages/views/install-local.html
+++ b/src/Umbraco.Web.UI.Client/src/views/packages/views/install-local.html
@@ -12,7 +12,7 @@
                      ng-model="filesHolder"
                      ngf-change="handleFiles($files, $event)"
                      class="umb-upload-local__dropzone"
-                     ngf-drag-over-class="drag-over"
+                     ngf-drag-over-class="'drag-over'"
                      ngf-multiple="false"
                      ngf-allow-dir="false"
                      ngf-pattern="*.zip"