diff --git a/lib/auth/sia/Makefile.am b/lib/auth/sia/Makefile.am
index 5c790418c..f430760c3 100644
--- a/lib/auth/sia/Makefile.am
+++ b/lib/auth/sia/Makefile.am
@@ -23,7 +23,7 @@ L = \
 	$(top_builddir)/lib/krb5/.libs/libkrb5.a	\
 	$(top_builddir)/lib/asn1/.libs/libasn1.a	\
 	$(LIB_krb4)					\
-	$(top_builddir)/lib/des/.libs/libdes.a		\
+	$(LIB_des_a)		\
 	$(top_builddir)/lib/com_err/.libs/libcom_err.a	\
 	$(top_builddir)/lib/roken/.libs/libroken.a	\
 	$(LIB_getpwnam_r)				\
@@ -34,7 +34,7 @@ L_shared = \
 	$(top_builddir)/lib/krb5/.libs/libkrb5.so	\
 	$(top_builddir)/lib/asn1/.libs/libasn1.so	\
 	$(LIB_krb4)					\
-	$(top_builddir)/lib/des/.libs/libdes.so		\
+	$(LIB_des_so)		\
 	$(top_builddir)/lib/com_err/.libs/libcom_err.so	\
 	$(top_builddir)/lib/roken/.libs/libroken.so	\
 	$(LIB_getpwnam_r)				\
@@ -48,7 +48,7 @@ L = \
 	$(KAFS)						\
 	$(top_builddir)/lib/kadm/.libs/libkadm.a	\
 	$(top_builddir)/lib/krb/.libs/libkrb.a		\
-	$(top_builddir)/lib/des/.libs/libdes.a		\
+	$(LIB_des_a)		\
 	$(top_builddir)/lib/com_err/.libs/libcom_err.a	\
 	$(top_builddir)/lib/roken/.libs/libroken.a	\
 	$(LIB_getpwnam_r)				\
@@ -58,7 +58,7 @@ L_shared = \
 	$(KAFS_S)					\
 	$(top_builddir)/lib/kadm/.libs/libkadm.so	\
 	$(top_builddir)/lib/krb/.libs/libkrb.so		\
-	$(top_builddir)/lib/des/.libs/libdes.so		\
+	$(LIB_des_so)		\
 	$(top_builddir)/lib/com_err/.libs/libcom_err.so	\
 	$(top_builddir)/lib/roken/.libs/libroken.so	\
 	$(LIB_getpwnam_r)				\
@@ -74,7 +74,7 @@ EXTRA_DIST = sia.c krb4_matrix.conf krb4+c2_matrix.conf \
 foodir = $(libdir)
 foo_DATA = $(MOD)
 
-LDFLAGS = -rpath $(libdir) -hidden -exported_symbol siad_\* 
+LDFLAGS = @LDFLAGS@ -rpath $(libdir) -hidden -exported_symbol siad_\* 
 
 OBJS = sia.o posix_getpw.o