diff --git a/src/backend/UpdateManger.ts b/src/backend/UpdateManger.ts
index 4e29914..839eadb 100644
--- a/src/backend/UpdateManger.ts
+++ b/src/backend/UpdateManger.ts
@@ -123,7 +123,7 @@ export abstract class FSExtension<Status extends FSStatus> extends Extension<Sta
         const installed = await this.isInstalled()
         if (!installed) {
             logger.info('Installing extension to', path.resolve(this.prefix, this.name))
-            mkdir(path.resolve(this.prefix, this.name), {recursive: true})
+            await fs.mkdir(path.resolve(this.prefix, this.name), {recursive: true})
             return true
         }
         logger.warn('Extension already installed at', path.resolve(this.prefix, this.name))