diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 7c94a49..c1a8175 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -284,7 +284,7 @@
 	}
 }
 
-static struct tcp_congestion_ops htcp = {
+static struct tcp_congestion_ops htcp __read_mostly = {
 	.init		= htcp_init,
 	.ssthresh	= htcp_recalc_ssthresh,
 	.cong_avoid	= htcp_cong_avoid,