diff --git a/graphene_django/management/commands/graphql_schema.py b/graphene_django/management/commands/graphql_schema.py
index 13cdc84..d06f4d8 100644
--- a/graphene_django/management/commands/graphql_schema.py
+++ b/graphene_django/management/commands/graphql_schema.py
@@ -62,7 +62,7 @@ class Command(CommandArguments):
         schema_dict = {"data": schema.introspect()}
         if out == "-" or out == "-.json":
             self.stdout.write(json.dumps(schema_dict, indent=indent, sort_keys=True))
-        if out == "-.graphql":
+        elif out == "-.graphql":
             print(print_schema(schema))
         else:
             # Determine format