diff --git a/lib/hx509/Makefile.am b/lib/hx509/Makefile.am
index 47c4374d1..87533ddb3 100644
--- a/lib/hx509/Makefile.am
+++ b/lib/hx509/Makefile.am
@@ -83,7 +83,7 @@ dist_libhx509_la_SOURCES = \
 libhx509_la_LIBADD = \
 	$(LIB_com_err) \
 	$(LIB_des) \
-	../asn1/libasn1.la \
+	$(top_builddir)/lib/asn1/libasn1.la \
 	$(LIB_roken) $(LIB_dlopen)
 
 libhx509_la_CPPFLAGS = -I$(srcdir)/ref $(INCLUDE_des)