diff --git a/unix/portnm.c b/unix/portnm.c
index 9eda4ab..019337c 100644
--- a/unix/portnm.c
+++ b/unix/portnm.c
@@ -32,7 +32,7 @@ zsysdep_port_name (ftcp_port)
 
 #if HAVE_TCP
   {
-    size_t clen;
+    socklen_t clen;
     struct sockaddr s;
 
     clen = sizeof (struct sockaddr);
diff --git a/unix/tcp.c b/unix/tcp.c
index 1bbcec7..af52cab 100644
--- a/unix/tcp.c
+++ b/unix/tcp.c
@@ -395,7 +395,7 @@ ftcp_open (qconn, ibaud, fwait, fuser)
   while (! FGOT_SIGNAL ())
     {
       sockaddr_storage speer;
-      size_t clen;
+      socklen_t clen;
       int onew;
       pid_t ipid;