diff --git a/lib/des/aes.c b/lib/des/aes.c
index 6195bd5f3..dc7d337d9 100644
--- a/lib/des/aes.c
+++ b/lib/des/aes.c
@@ -39,8 +39,6 @@ RCSID("$Id$");
 
 #ifdef KRB5
 #include <krb5-types.h>
-#elif defined(KRB4)
-#include <ktypes.h>
 #endif
 
 #include <string.h>
diff --git a/lib/des/rijndael-alg-fst.c b/lib/des/rijndael-alg-fst.c
index 202bb6e2a..64b5bc803 100644
--- a/lib/des/rijndael-alg-fst.c
+++ b/lib/des/rijndael-alg-fst.c
@@ -36,8 +36,6 @@ RCSID("$Id$");
 
 #ifdef KRB5
 #include <krb5-types.h>
-#elif defined(KRB4)
-#include <ktypes.h>
 #endif
 
 #include <rijndael-alg-fst.h>
diff --git a/lib/des/rnd_keys.c b/lib/des/rnd_keys.c
index 8ed7086f6..dd2cfd676 100644
--- a/lib/des/rnd_keys.c
+++ b/lib/des/rnd_keys.c
@@ -41,8 +41,6 @@ RCSID("$Id$");
 #include <des_locl.h>
 #ifdef KRB5
 #include <krb5-types.h>
-#elif defined(KRB4)
-#include <ktypes.h>
 #endif
 
 #include <string.h>