diff --git a/app1/management/commands/wait_for_db.py b/app1/management/commands/wait_for_db.py
index 981f116..ba0659c 100644
--- a/app1/management/commands/wait_for_db.py
+++ b/app1/management/commands/wait_for_db.py
@@ -18,7 +18,7 @@ class Command(BaseCommand):
         db_up = False
         while db_up is False:
             try:
-                self.check(database=['default'])
+                self.check(databases=['default'])
                 db_up = True
             except (Psycopg2OpError, OperationalError):
                 self.stdout.write('Database unavailable, waiting 1 sec...')