diff --git a/src/sock.c b/src/sock.c
index 55471e1..1c87d60 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -186,16 +186,16 @@ error_malloc_sock:
 }
 
 void patty_ax25_sock_destroy(patty_ax25_sock *sock) {
-    if (sock->fd) {
-        if (sock->iface) {
+    if (sock->type == PATTY_AX25_SOCK_RAW) {
+        if (sock->state == PATTY_AX25_SOCK_PROMISC) {
             (void)patty_ax25_if_promisc_delete(sock->iface, sock->fd);
         }
 
-        close(sock->fd);
+        patty_kiss_tnc_destroy(sock->raw);
     }
 
-    if (sock->raw) {
-        patty_kiss_tnc_destroy(sock->raw);
+    if (sock->fd > 0) {
+        (void)close(sock->fd);
     }
 
     free(sock->tx_slots);