diff --git a/msg/ulog_stream_ack.msg b/msg/ulog_stream_ack.msg
index c155b2a875..b293f5c496 100644
--- a/msg/ulog_stream_ack.msg
+++ b/msg/ulog_stream_ack.msg
@@ -1,7 +1,7 @@
 # Ack a previously sent ulog_stream message that had
 # the NEED_ACK flag set
 
-int32 ACK_TIMEOUT = 300         # timeout waiting for an ack until we retry to send the message [ms]
-int32 ACK_MAX_TRIES = 9         # maximum amount of tries to (re-)send a message, each time waiting ACK_TIMEOUT ms
+int32 ACK_TIMEOUT = 50         # timeout waiting for an ack until we retry to send the message [ms]
+int32 ACK_MAX_TRIES = 50         # maximum amount of tries to (re-)send a message, each time waiting ACK_TIMEOUT ms
 
 uint16 sequence