diff --git a/appl/telnet/telnet/commands.c b/appl/telnet/telnet/commands.c
index ac6b54fb0..082aec3a1 100644
--- a/appl/telnet/telnet/commands.c
+++ b/appl/telnet/telnet/commands.c
@@ -453,20 +453,6 @@ togdebug()
     return 1;
 }
 
-#if defined(KRB4) && defined(HAVE_KRB_DISABLE_DEBUG)
-#include <krb.h>
-
-static int
-togkrbdebug(void)
-{
-    if(krb_debug)
-	krb_enable_debug();
-    else
-	krb_disable_debug();
-    return 1;
-}
-#endif
-
 static int
 togcrlf()
 {
@@ -688,13 +674,6 @@ static struct togglelist Togglelist[] = {
 	    togdebug,
 		&debug,
 		    "turn on socket level debugging" },
-#if defined(KRB4) && defined(HAVE_KRB_DISABLE_DEBUG)
-    { "krb_debug",
-      "kerberos 4 debugging",
-      togkrbdebug,
-      &krb_debug,
-      "turn on kerberos 4 debugging" },
-#endif
     { "netdata",
 	"printing of hexadecimal network data (debugging)",
 	    0,