diff --git a/kamailio/default.cfg b/kamailio/default.cfg
index 80ba6e8..130ea70 100644
--- a/kamailio/default.cfg
+++ b/kamailio/default.cfg
@@ -101,6 +101,7 @@ loadmodule "path.so"
 
 ######## Kamailio control connector module ########
 loadmodule "ctl.so"
+modparam("ctl", "binrpc_buffer_size", 4096)
 loadmodule "cfg_rpc.so"
 loadmodule "cfgutils.so"
 loadmodule "corex.so"