diff --git a/Modules/_sqlite/connection.c b/Modules/_sqlite/connection.c
index 46717acf7c7..5c7b4eeae6a 100644
--- a/Modules/_sqlite/connection.c
+++ b/Modules/_sqlite/connection.c
@@ -891,7 +891,6 @@ pysqlite_connection_create_aggregate_impl(pysqlite_Connection *self,
         return NULL;
     }
 
-    Py_INCREF(aggregate_class);
     rc = sqlite3_create_function_v2(self->db,
                                     name,
                                     n_arg,