diff --git a/tcp_conn.h b/tcp_conn.h
index 4e7c57a..6ae0511 100644
--- a/tcp_conn.h
+++ b/tcp_conn.h
@@ -125,10 +125,9 @@ struct tcp_splice_conn {
 #define FIN_SENT(sidei_)		((sidei_) ? BIT(7) : BIT(6))
 
 	uint8_t flags;
-#define SPLICE_V6			BIT(0)
-#define RCVLOWAT_SET(sidei_)		((sidei_) ? BIT(2) : BIT(1))
-#define RCVLOWAT_ACT(sidei_)		((sidei_) ? BIT(4) : BIT(3))
-#define CLOSING				BIT(5)
+#define RCVLOWAT_SET(sidei_)		((sidei_) ? BIT(1) : BIT(0))
+#define RCVLOWAT_ACT(sidei_)		((sidei_) ? BIT(3) : BIT(2))
+#define CLOSING				BIT(4)
 
 	bool in_epoll	:1;
 };
diff --git a/tcp_splice.c b/tcp_splice.c
index 608e7f2..c81daee 100644
--- a/tcp_splice.c
+++ b/tcp_splice.c
@@ -73,8 +73,6 @@ static int ns_sock_pool6	[TCP_SOCK_POOL_SIZE];
 /* Pool of pre-opened pipes */
 static int splice_pipe_pool		[TCP_SPLICE_PIPE_POOL_SIZE][2];
 
-#define CONN_V6(x)			((x)->flags & SPLICE_V6)
-#define CONN_V4(x)			(!CONN_V6(x))
 #define CONN_HAS(conn, set)		(((conn)->events & (set)) == (set))
 
 /* Display strings for connection events */
@@ -483,7 +481,6 @@ bool tcp_splice_conn_from_sock(const struct ctx *c,
 			       NULL, 0, &in6addr_loopback, dstport);
 	conn = FLOW_SET_TYPE(flow, FLOW_TCP_SPLICE, tcp_splice);
 
-	conn->flags = af == AF_INET ? 0 : SPLICE_V6;
 	conn->s[0] = s0;
 	conn->s[1] = -1;
 	conn->pipe[0][0] = conn->pipe[0][1] = -1;