diff --git a/modules/rtpengine/doc/rtpengine_admin.xml b/modules/rtpengine/doc/rtpengine_admin.xml
index 328528eabf7..76c018870de 100644
--- a/modules/rtpengine/doc/rtpengine_admin.xml
+++ b/modules/rtpengine/doc/rtpengine_admin.xml
@@ -454,7 +454,9 @@ rtpengine_offer();
symmetric - flags that for the UA from which
- message is received, support symmetric RTP must be forced.
+ message is received, support symmetric RTP must be forced. You do not
+ need to explicitly specify this value, as it is the default, and the
+ behavior is only changed when the asymmetric is used.
repacketize=NN - requests the &rtp; proxy to perform