diff --git a/server/src/data/app.py b/server/src/data/app.py
index 324c08e..964cc37 100644
--- a/server/src/data/app.py
+++ b/server/src/data/app.py
@@ -24,7 +24,10 @@ CREATE TABLE IF NOT EXISTS val (
     default_time TEXT NOT NULL DEFAULT '21:00'
 )
 """)
-cursor.execute("INSERT INTO val (default_time) VALUES (?)", ('21:00',))
+cursor.execute("SELECT COUNT(*) FROM val")
+count = cursor.fetchone()[0]
+if count == 0:
+    cursor.execute("INSERT INTO val (default_time) VALUES (?)", ('21:00',))
 conn.commit()
 conn.close()