diff --git a/appl/login/login_locl.h b/appl/login/login_locl.h
index 1a780a128..392c901d1 100644
--- a/appl/login/login_locl.h
+++ b/appl/login/login_locl.h
@@ -84,9 +84,6 @@
 #ifdef HAVE_RPCSVC_YPCLNT_H
 #include <rpcsvc/ypclnt.h>
 #endif
-#ifdef KRB4
-#include <krb.h>
-#endif
 #ifdef KRB5
 #include <krb5.h>
 #endif