diff --git a/src/sock.c b/src/sock.c
index 15aef13..65024b9 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -338,11 +338,6 @@ void patty_ax25_sock_seq_recv_incr(patty_ax25_sock *sock) {
     }
 }
 
-static inline size_t maxsz(patty_ax25_sock *sock,
-                           size_t infolen) {
-    return infolen + PATTY_AX25_FRAME_OVERHEAD;
-}
-
 static inline int toobig(patty_ax25_sock *sock,
                          size_t infolen) {
     return infolen > PATTY_AX25_FRAME_OVERHEAD + sock->n_maxlen_tx;