diff --git a/modules/openapi-generator/src/main/resources/python/api.mustache b/modules/openapi-generator/src/main/resources/python/api.mustache
index 24356a2f170..913e0dbbb28 100644
--- a/modules/openapi-generator/src/main/resources/python/api.mustache
+++ b/modules/openapi-generator/src/main/resources/python/api.mustache
@@ -199,7 +199,7 @@ class {{classname}}(object):
             {{/isDateTime}}
             {{^isDateTime}}
             {{#isDate}}
-            if isinstance(_params['{{paramName}}'], datetime):
+            if isinstance(_params['{{paramName}}'], date):
                 _query_params.append(('{{baseName}}', _params['{{paramName}}'].strftime(self.api_client.configuration.date_format)))
             else:
                 _query_params.append(('{{baseName}}', _params['{{paramName}}']))
diff --git a/samples/client/echo_api/python/openapi_client/api/query_api.py b/samples/client/echo_api/python/openapi_client/api/query_api.py
index 299a625d12e..c0bb2007e96 100644
--- a/samples/client/echo_api/python/openapi_client/api/query_api.py
+++ b/samples/client/echo_api/python/openapi_client/api/query_api.py
@@ -305,7 +305,7 @@ class QueryApi(object):
                 _query_params.append(('datetime_query', _params['datetime_query']))
 
         if _params.get('date_query') is not None:  # noqa: E501
-            if isinstance(_params['date_query'], datetime):
+            if isinstance(_params['date_query'], date):
                 _query_params.append(('date_query', _params['date_query'].strftime(self.api_client.configuration.date_format)))
             else:
                 _query_params.append(('date_query', _params['date_query']))