diff --git a/appl/telnet/libtelnet/enc_des.c b/appl/telnet/libtelnet/enc_des.c
index c1466927e..7bf21ea85 100644
--- a/appl/telnet/libtelnet/enc_des.c
+++ b/appl/telnet/libtelnet/enc_des.c
@@ -408,7 +408,7 @@ static void fb64_session(Session_Key *key, int server, struct fb *fbp)
 	fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]);
 
 	if (fbp->once == 0) {
-#ifndef OLD_DES_RANDOM_KEY
+#if !defined(OLD_DES_RANDOM_KEY) && !defined(HAVE_OPENSSL_DES_H)
 		des_init_random_number_generator(&fbp->krbdes_key);
 #endif
 		fbp->once = 1;