diff --git a/src/sock.c b/src/sock.c
index 1abbfaf..0212f5c 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -174,7 +174,7 @@ error_if_promisc_add:
 }
 
 void patty_ax25_sock_seq_send_incr(patty_ax25_sock *sock) {
-    if (sock->mode == PATTY_AX25_SOCK_SABME) {
+    if (sock->mode == PATTY_AX25_SOCK_SABM) {
         sock->seq_send = (sock->seq_send + 1) & 0x07;
     } else {
         sock->seq_send = (sock->seq_send + 1) & 0x7f;
@@ -182,7 +182,7 @@ void patty_ax25_sock_seq_send_incr(patty_ax25_sock *sock) {
 }
 
 void patty_ax25_sock_seq_recv_incr(patty_ax25_sock *sock) {
-    if (sock->mode == PATTY_AX25_SOCK_SABME) {
+    if (sock->mode == PATTY_AX25_SOCK_SABM) {
         sock->seq_recv = (sock->seq_recv + 1) & 0x07;
     } else {
         sock->seq_recv = (sock->seq_recv + 1) & 0x7f;