diff --git a/changes.txt b/changes.txt
index 97583ab..d8d31d8 100644
--- a/changes.txt
+++ b/changes.txt
@@ -57,3 +57,7 @@ tpws : added split-pos option. split every message at specified position
 v11
 
 ipset : scripts optimizations
+
+v12
+
+nfqws : fix wrong tcp checksum calculation if packet length is odd and platform is big-endian
diff --git a/nfq/nfqws.c b/nfq/nfqws.c
index 83205bc..e244f17 100644
--- a/nfq/nfqws.c
+++ b/nfq/nfqws.c
@@ -125,8 +125,12 @@ uint16_t tcp_checksum(const void *buff, int len, in_addr_t src_addr, in_addr_t d
 		len -= 2;
 	}
 	if ( len & 1 )
+	{
 		// Add the padding if the packet lenght is odd
-		sum += *((uint8_t *)buf);
+		uint16_t v=0;
+		*(uint8_t *)&v = *((uint8_t *)buf);
+		sum += v;
+	}
 		
 	// Add the pseudo-header
 	sum += *(ip_src++);
@@ -165,8 +169,12 @@ uint16_t tcp6_checksum(const void *buff, int len, const struct in6_addr *src_add
 		len -= 2;
 	}
 	if ( len & 1 )
+	{
 		// Add the padding if the packet lenght is odd
-		sum += *((uint8_t *)buf);
+		uint16_t v=0;
+		*(uint8_t *)&v = *((uint8_t *)buf);
+		sum += v;
+	}
 	
 	// Add the pseudo-header
 	sum += *(ip_src++);
diff --git a/readme.txt b/readme.txt
index 73a16c5..5682377 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,4 +1,4 @@
-zapret v.11
+zapret v.12
 
 Для чего это надо
 -----------------