diff --git a/freqtrade/persistence/migrations.py b/freqtrade/persistence/migrations.py
index b4ddfc8d8..03f412724 100644
--- a/freqtrade/persistence/migrations.py
+++ b/freqtrade/persistence/migrations.py
@@ -171,7 +171,7 @@ def check_migrate(engine, decl_base, previous_tables) -> None:
     table_back_name = get_backup_name(tabs, 'trades_bak')
 
     # Check for latest column
-    if not has_column(cols, 'buy_tag'):
+    if not has_column(cols, 'is_short'):
         logger.info(f'Running database migration for trades - backup: {table_back_name}')
         migrate_trades_table(decl_base, inspector, engine, table_back_name, cols)
         # Reread columns - the above recreated the table!