diff --git a/apps/server/src/services/export/zip.ts b/apps/server/src/services/export/zip.ts
index 58ab7074f..9d3e73d25 100644
--- a/apps/server/src/services/export/zip.ts
+++ b/apps/server/src/services/export/zip.ts
@@ -21,6 +21,7 @@ import type AttributeMeta from "../meta/attribute_meta.js";
 import type BBranch from "../../becca/entities/bbranch.js";
 import type { Response } from "express";
 import type { NoteMetaFile } from "../meta/note_meta.js";
+import cssContent from "@triliumnext/ckeditor5/content.css";
 
 type RewriteLinksFn = (content: string, noteMeta: NoteMeta) => string;
 
@@ -513,6 +514,8 @@ ${markdownContent}`;
         if (!cssMeta.dataFileName) {
             return;
         }
+
+        archive.append(cssContent, { name: cssMeta.dataFileName });
     }
 
     try {
diff --git a/apps/server/src/types.d.ts b/apps/server/src/types.d.ts
index 4bcac86d2..c302e27d8 100644
--- a/apps/server/src/types.d.ts
+++ b/apps/server/src/types.d.ts
@@ -23,6 +23,12 @@ declare module "is-animated" {
     export default isAnimated;
 }
 
+declare module "@triliumnext/ckeditor5/content.css" {
+    const content: string;
+    export default content;
+}
+
+
 declare module "@triliumnext/share-theme/*.ejs" {
     const content: string;
     export default content;