diff --git a/include/tr/socket.h b/include/tr/socket.h
index d8888ab..018331a 100644
--- a/include/tr/socket.h
+++ b/include/tr/socket.h
@@ -37,6 +37,9 @@
 //#include "tr/interface/socket.h"
 #include "tr/logger.h"
 
+#define TR_UDP_MAX_READ_BLOCK	8 * 1024
+#define TR_TCP_MAX_READ_BLOCK	256 * 1024
+
 typedef enum TR_e_socket_fin {
 	TR_FIN_NO   = 0,
 	TR_FIN_RD   = 1,
diff --git a/src/tcp_socket.c b/src/tcp_socket.c
index c14731c..fe54a9d 100644
--- a/src/tcp_socket.c
+++ b/src/tcp_socket.c
@@ -89,10 +89,13 @@ static
 TR_RemoteData
 tcpSocketRecv(TR_Socket this, size_t size)
 {
-	unsigned char buffer[size = size>8192 ? 8192 : size];
 	TR_RemoteData rdata = NULL;
 	ssize_t       received;
 
+	size = size>TR_TCP_MAX_READ_BLOCK ? TR_TCP_MAX_READ_BLOCK : size;
+
+	unsigned char buffer[size];
+
 	received = recv(this->handle, buffer, size, this->flags);
 
 	if (-1 == received) {
diff --git a/src/udp_socket.c b/src/udp_socket.c
index 3c99927..a7a9ce4 100644
--- a/src/udp_socket.c
+++ b/src/udp_socket.c
@@ -51,11 +51,14 @@ static
 TR_RemoteData
 udpSocketRecv(TR_Socket this, size_t size)
 {
-	unsigned char buffer[size = size>8192 ? 8192 : size];
 	ssize_t       received;
 	TR_RemoteData rdata;
 	TR_Socket     remote = TR_new(TR_UdpSocket, this->log, NULL, 0, 0);
 	
+	size = size>TR_UDP_MAX_READ_BLOCK ? TR_UDP_MAX_READ_BLOCK : size;
+
+	unsigned char buffer[size];
+
 	remote->addrlen = this->addrlen;
 
 	received = recvfrom(