diff --git a/src/MultiPlayer/multiplaymgr.cxx b/src/MultiPlayer/multiplaymgr.cxx
index a7b0bc2f5..0271c10c4 100644
--- a/src/MultiPlayer/multiplaymgr.cxx
+++ b/src/MultiPlayer/multiplaymgr.cxx
@@ -330,7 +330,7 @@ static const IdPropertyList sIdPropertyList[] = {
     { 1504, "instrumentation/transponder/ground-bit", simgear::props::BOOL, TT_SHORTINT, V1_1_2_PROP_ID, NULL, NULL },
     { 1505, "instrumentation/transponder/airspeed-kt", simgear::props::INT, TT_SHORTINT, V1_1_2_PROP_ID, NULL, NULL },
 
-    { 10001, "sim/multiplay/transmission-freq-hz",  simgear::props::STRING, TT_ASIS,  V1_1_2_PROP_ID, NULL, NULL },
+    { 10001, "sim/multiplay/transmission-freq-hz",  simgear::props::STRING, TT_NOSEND,  V1_1_2_PROP_ID, NULL, NULL },
     { 10002, "sim/multiplay/chat",  simgear::props::STRING, TT_ASIS,  V1_1_2_PROP_ID, NULL, NULL },
 
     { 10100, "sim/multiplay/generic/string[0]", simgear::props::STRING, TT_ASIS,  V1_1_2_PROP_ID, NULL, NULL },