diff --git a/src/sock.c b/src/sock.c
index cedbeb3..9c26dfa 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -143,7 +143,7 @@ void patty_ax25_sock_reset(patty_ax25_sock *sock) {
     sock->n_maxlen_tx     = PATTY_AX25_SOCK_DEFAULT_MAXLEN;
     sock->n_maxlen_rx     = PATTY_AX25_SOCK_DEFAULT_MAXLEN;
     sock->n_window_tx     = PATTY_AX25_SOCK_DEFAULT_WINDOW;
-    sock->n_window_tx     = PATTY_AX25_SOCK_DEFAULT_WINDOW;
+    sock->n_window_rx     = PATTY_AX25_SOCK_DEFAULT_WINDOW;
     sock->n_ack           = PATTY_AX25_SOCK_DEFAULT_ACK;
     sock->n_retry         = PATTY_AX25_SOCK_DEFAULT_RETRY;
     sock->timer_ack       = 0;