diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 682e7d5b6f2f80ac3f23aabd337a60278531c176..283be3cb46670a96114665ef4b1d1e2bb0e7bc98 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -23,7 +23,7 @@ module_param(use_bandwidth_switch, int, 0644);
 MODULE_PARM_DESC(use_bandwidth_switch, "turn on/off bandwidth switcher");
 
 struct htcp {
-	u16	alpha;		/* Fixed point arith, << 7 */
+	u32	alpha;		/* Fixed point arith, << 7 */
 	u8	beta;           /* Fixed point arith, << 7 */
 	u8	modeswitch;     /* Delay modeswitch until we had at least one congestion event */
 	u32	last_cong;	/* Time since last congestion event end */