diff --git a/juju/client/connection.py b/juju/client/connection.py
index f0d10597d..cc86c68f6 100644
--- a/juju/client/connection.py
+++ b/juju/client/connection.py
@@ -549,6 +549,7 @@ async def rpc(self, msg, encoder=None):
                     log.error('RPC: Automatic reconnect failed')
                     raise
         result = await self._recv(msg['request-id'])
+        log.warning("DUMP\n%s\n%s\n", outgoing, result)
         log.debug('connection id : {} <--- {}'.format(id(self), result))
 
         if not result: