diff --git a/backend/src/db.js b/backend/src/db.js
index 7f2fa21..04c7002 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -161,9 +161,12 @@ if (!ordCols.includes('bezahlt_am')) db.exec("ALTER TABLE orders ADD COLUMN beza
 const fileCols = db.prepare("PRAGMA table_info(files)").all().map(r => r.name);
 if (!fileCols.includes('folder_id')) db.exec("ALTER TABLE files ADD COLUMN folder_id INTEGER REFERENCES folders(id) ON DELETE SET NULL");
 
-// folder_shares migrations
-const fsCols = db.prepare("PRAGMA table_info(folder_shares)").all().map(r => r.name);
-if (!fsCols.includes('created_at')) db.exec("ALTER TABLE folder_shares ADD COLUMN created_at DATETIME DEFAULT CURRENT_TIMESTAMP");
+// folder_shares migrations (only if table exists)
+const fsTableExists = db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='folder_shares'").get();
+if (fsTableExists) {
+  const fsCols = db.prepare("PRAGMA table_info(folder_shares)").all().map(r => r.name);
+  if (!fsCols.includes('created_at')) db.exec("ALTER TABLE folder_shares ADD COLUMN created_at DATETIME DEFAULT CURRENT_TIMESTAMP");
+}
 
 const oiCols = db.prepare("PRAGMA table_info(order_items)").all().map(r => r.name);
 if (!oiCols.includes('stunden')) db.exec("ALTER TABLE order_items ADD COLUMN stunden REAL NOT NULL DEFAULT 0");