diff --git a/appl/xnlock/Makefile.am b/appl/xnlock/Makefile.am
index 6ad62c78f..f073d6810 100644
--- a/appl/xnlock/Makefile.am
+++ b/appl/xnlock/Makefile.am
@@ -2,7 +2,7 @@
 
 include $(top_srcdir)/Makefile.am.common
 
-AM_CPPFLAGS += $(INCLUDE_krb4) $(X_CFLAGS)
+AM_CPPFLAGS += $(X_CFLAGS)
 
 WFLAGS += $(WFLAGS_NOIMPLICITINT)
 
@@ -26,7 +26,6 @@ EXTRA_DIST = $(man_MANS) nose.0.left nose.0.right nose.1.left nose.1.right \
 LDADD = \
 	$(LIB_kafs) \
 	$(LIB_krb5) \
-	$(LIB_krb4) \
 	$(LIB_hcrypto) \
 	$(LIB_roken) \
 	$(X_LIBS) -lXt $(X_PRE_LIBS) -lX11 $(X_EXTRA_LIBS)