diff --git a/server/index.js b/server/index.js
index 7a0adda1..a6505a38 100644
--- a/server/index.js
+++ b/server/index.js
@@ -13,6 +13,7 @@ const SqliteConnectionPool = require('./core/SqliteConnectionPool');
 async function init() {
     await fs.ensureDir(config.dataDir);
     await fs.ensureDir(config.tempDir);
+    await fs.emptyDir(config.tempDir);
 }
 
 async function main() {