diff --git a/mccli.py b/mccli.py
index 6f18ec7..09c8878 100755
--- a/mccli.py
+++ b/mccli.py
@@ -516,7 +516,7 @@ class MeshCore:
         """ Wait for a message """
         await self.rx_sem.acquire()
 
-    async def wait_ack(self, timeout=10):
+    async def wait_ack(self, timeout=6):
         """ Wait ack """
         try:
             await asyncio.wait_for(self.ack_ev.wait(), timeout)