diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp
index 7f13a09..23eea23 100644
--- a/Transceiver52M/Transceiver.cpp
+++ b/Transceiver52M/Transceiver.cpp
@@ -704,7 +704,7 @@
   int msgLen = -1;
   buffer[0] = '\0';
 
-  msgLen = mCtrlSockets[chan]->read(buffer);
+  msgLen = mCtrlSockets[chan]->read(buffer, sizeof(buffer));
 
   if (msgLen < 1) {
     return;
@@ -872,7 +872,7 @@
   char buffer[gSlotLen+50];
 
   // check data socket
-  size_t msgLen = mDataSockets[chan]->read(buffer);
+  size_t msgLen = mDataSockets[chan]->read(buffer, sizeof(buffer));
 
   if (msgLen!=gSlotLen+1+4+1) {
     LOG(ERR) << "badly formatted packet on GSM->TRX interface";