diff --git a/sim_sock.c b/sim_sock.c
index 90a2a80d..8f714568 100644
--- a/sim_sock.c
+++ b/sim_sock.c
@@ -136,6 +136,7 @@ static struct sock_errors {
         {WSAECONNREFUSED, "Connection refused"},
         {WSAEHOSTUNREACH, "No route to host"},
         {WSAEADDRINUSE,   "Address already in use "},
+        {WSAEACCES,       "Permission denied"},
         {0, NULL}
     };
 
diff --git a/sim_sock.h b/sim_sock.h
index 76dbe732..17c29afd 100644
--- a/sim_sock.h
+++ b/sim_sock.h
@@ -66,6 +66,7 @@
 #define WSAECONNREFUSED ECONNREFUSED
 #define WSAEHOSTUNREACH EHOSTUNREACH
 #define WSAEADDRINUSE   EADDRINUSE
+#define WSAEACCES       EACCES
 #define INVALID_SOCKET  ((SOCKET)-1) 
 #define SOCKET_ERROR    -1
 #include <sys/types.h>                                  /* for fcntl, getpid */