diff --git a/impacket/dcerpc/v5/rpcrt.py b/impacket/dcerpc/v5/rpcrt.py
index dae2f419f..fedf1a84f 100644
--- a/impacket/dcerpc/v5/rpcrt.py
+++ b/impacket/dcerpc/v5/rpcrt.py
@@ -2087,7 +2087,7 @@ def addCallbacks(self, ifaceUUID, secondaryAddr, callbacks):
         self._listenUUIDS[uuidtup_to_bin(ifaceUUID)] = {}
         self._listenUUIDS[uuidtup_to_bin(ifaceUUID)]['SecondaryAddr'] = secondaryAddr
         self._listenUUIDS[uuidtup_to_bin(ifaceUUID)]['CallBacks'] = callbacks
-        self.log("Callback added for UUID %s V:%s" % ifaceUUID)
+        self.log("Callback added for UUID %s V:%s" % ifaceUUID, level=logging.DEBUG)
 
     def setListenAddress(self,addr):
         self._listenAddress=addr