diff --git a/src/serverconfig.ts b/src/serverconfig.ts
index e7d00d3..d665f04 100644
--- a/src/serverconfig.ts
+++ b/src/serverconfig.ts
@@ -41,7 +41,7 @@ export const attachmentUploadDirectory = path.resolve(process.env.ATTACHMENT_UPL
 const ensureDirectory = (dir: string) => {
     const stats = statSync(dir, { throwIfNoEntry: false });
     if (!stats) {
-        mkdirSync(dir, { mode: uploadsDirectoryMode });
+        mkdirSync(dir, { mode: uploadsDirectoryMode, recursive: true });
         return;
     }
     if (!stats.isDirectory()) {