diff --git a/ibm_db_sa/base.py b/ibm_db_sa/base.py
index 9cfd19e..75704cd 100644
--- a/ibm_db_sa/base.py
+++ b/ibm_db_sa/base.py
@@ -719,6 +719,8 @@ def initialize(self, connection):
             _reflector_cls = ibm_reflection.AS400Reflector
         elif self.dbms_name == "DB2":
             _reflector_cls = ibm_reflection.OS390Reflector
+        elif(self.dbms_name is None):
+            _reflector_cls = ibm_reflection.DB2Reflector
         elif "DB2/" in self.dbms_name:
             _reflector_cls = ibm_reflection.DB2Reflector
         elif "IDS/" in self.dbms_name: