diff --git a/apps/files_sharing/css/public.scss b/apps/files_sharing/css/public.scss
index 583912ad23614..3d6fc62ceba40 100644
--- a/apps/files_sharing/css/public.scss
+++ b/apps/files_sharing/css/public.scss
@@ -1,5 +1,5 @@
 #preview {
-	background: #fff;
+	background: var(--color-main-background);
 	text-align: center;
 }