diff --git a/apps/client/src/widgets/type_widgets/file/PdfViewer.tsx b/apps/client/src/widgets/type_widgets/file/PdfViewer.tsx
index 7e6870dd42..a406f84a02 100644
--- a/apps/client/src/widgets/type_widgets/file/PdfViewer.tsx
+++ b/apps/client/src/widgets/type_widgets/file/PdfViewer.tsx
@@ -7,7 +7,8 @@ const VARIABLE_WHITELIST = new Set([
     "root-background",
     "main-background-color",
     "main-border-color",
-    "main-text-color"
+    "main-text-color",
+    "theme-style"
 ]);
 
 interface PdfViewerProps extends Pick<HTMLAttributes<HTMLIFrameElement>, "tabIndex"> {