diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index d86784b..a0c3700 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2300,7 +2300,7 @@
  * they differ. Since neither occurs due to loss, TCP should really
  * ignore them.
  */
-static inline int tcp_dupack_heurestics(struct tcp_sock *tp)
+static inline int tcp_dupack_heuristics(struct tcp_sock *tp)
 {
 	return tcp_is_fack(tp) ? tp->fackets_out : tp->sacked_out + 1;
 }
@@ -2425,7 +2425,7 @@
 		return 1;
 
 	/* Not-A-Trick#2 : Classic rule... */
-	if (tcp_dupack_heurestics(tp) > tp->reordering)
+	if (tcp_dupack_heuristics(tp) > tp->reordering)
 		return 1;
 
 	/* Trick#3 : when we use RFC2988 timer restart, fast