diff --git a/src/core/database.cpp b/src/core/database.cpp
index 42d5828..348a8c2 100644
--- a/src/core/database.cpp
+++ b/src/core/database.cpp
@@ -104,7 +104,8 @@ void Database::createNew()
 void Database::updateDbToVer2()
 {
     beginTransaction();
-    exec("INSERT INTO sellers (id, seller_no, first_name, last_name, num_offered_articles) VALUES "
+    exec("INSERT OR IGNORE INTO sellers (id, seller_no, first_name, last_name, "
+         "num_offered_articles) VALUES "
          "('11111111-1111-1111-1111-111111111111', 0, 'Sonderkonto', 'Sonderkonto', 0)");
     exec("UPDATE kima2 SET version = 2");
     endTransaction();