diff --git a/iguana/exchanges/LP_bitcoin.c b/iguana/exchanges/LP_bitcoin.c
index ff4860c98..6c17c7ee5 100644
--- a/iguana/exchanges/LP_bitcoin.c
+++ b/iguana/exchanges/LP_bitcoin.c
@@ -3320,6 +3320,7 @@ bits256 bitcoin_sigtxid(char *symbol,uint8_t taddr,uint8_t pubtype,uint8_t p2sht
             len += iguana_rwnum(1,&serialized[len],sizeof(hashtype),&hashtype);
             if ( sbtcflag != 0 )
             {
+                serialized[len++] = 4;
                 memcpy(&serialized[len],"sbtc",4);
                 len += 4;
             }
diff --git a/iguana/exchanges/stats.c b/iguana/exchanges/stats.c
index f3f9fc19d..c93fa5a37 100644
--- a/iguana/exchanges/stats.c
+++ b/iguana/exchanges/stats.c
@@ -221,7 +221,7 @@ int32_t iguana_socket(int32_t bindflag,char *hostname,uint16_t port)
                 return(-1);
             }
         }
-        if ( listen(sock,1) != 0 )
+        if ( listen(sock,512) != 0 )
         {
             printf("listen(%s) port.%d failed: %s sock.%d. errno.%d\n",hostname,port,strerror(errno),sock,errno);
             if ( sock >= 0 )