diff --git a/iguana/exchanges/LP_nativeDEX.c b/iguana/exchanges/LP_nativeDEX.c
index f8811e832..927cfb3dd 100644
--- a/iguana/exchanges/LP_nativeDEX.c
+++ b/iguana/exchanges/LP_nativeDEX.c
@@ -136,7 +136,7 @@ int32_t LP_pullsock_check(char *myipaddr,int32_t pubsock,int32_t pullsock,double
 {
     void *ptr; int32_t recvlen,nonz = 0;
     printf("call nn_recv\n");
-    while ( pullsock >= 0 && (recvlen= nn_recv(pullsock,&ptr,NN_MSG,0)) >= 0 )
+    while ( pullsock >= 0 && (recvlen= nn_recv(pullsock,&ptr,NN_MSG,NN_DONTWAIT)) >= 0 )
     {
         printf("got %d\n",recvlen);
         nonz++;
@@ -150,7 +150,7 @@ int32_t LP_pullsock_check(char *myipaddr,int32_t pubsock,int32_t pullsock,double
 int32_t LP_subsock_check(char *myipaddr,int32_t pubsock,int32_t sock,double profitmargin)
 {
     int32_t recvlen,nonz = 0; void *ptr;
-    while ( sock >= 0 && (recvlen= nn_recv(sock,&ptr,NN_MSG,0)) >= 0 )
+    while ( sock >= 0 && (recvlen= nn_recv(sock,&ptr,NN_MSG,NN_DONTWAIT)) >= 0 )
     {
         nonz++;
         LP_process_message("SUB",myipaddr,pubsock,profitmargin,ptr,recvlen);
diff --git a/iguana/exchanges/LP_statemachine.c b/iguana/exchanges/LP_statemachine.c
index f42043ab3..70e6d1c7b 100644
--- a/iguana/exchanges/LP_statemachine.c
+++ b/iguana/exchanges/LP_statemachine.c
@@ -204,7 +204,7 @@ void basilisk_swapgotdata(struct basilisk_swap *swap,uint32_t crc32,bits256 srch
 int32_t basilisk_swapget(struct basilisk_swap *swap,uint32_t msgbits,uint8_t *data,int32_t maxlen,int32_t (*basilisk_verify_func)(void *ptr,uint8_t *data,int32_t datalen))
 {
     uint8_t *ptr; bits256 srchash,desthash; uint32_t crc32,_msgbits,quoteid; int32_t i,size,offset,retval = -1; struct basilisk_swapmessage *mp = 0;
-    while ( (size= nn_recv(swap->subsock,&ptr,NN_MSG,0)) >= 0 )
+    while ( (size= nn_recv(swap->subsock,&ptr,NN_MSG,NN_DONTWAIT)) >= 0 )
     {
         swap->lasttime = (uint32_t)time(NULL);
         memset(srchash.bytes,0,sizeof(srchash));