diff --git a/django/core/management/commands/dbshell.py b/django/core/management/commands/dbshell.py
index b177a7e083..07bc967ae0 100644
--- a/django/core/management/commands/dbshell.py
+++ b/django/core/management/commands/dbshell.py
@@ -22,7 +22,7 @@ class Command(BaseCommand):
                 '"default" database.'
             ),
         )
-        parameters = parser.add_argument_group("parameters", prefix_chars="--")
+        parameters = parser.add_argument_group("parameters")
         parameters.add_argument("parameters", nargs="*")
 
     def handle(self, **options):