diff --git a/bin/tests/system/Makefile.in b/bin/tests/system/Makefile.in
index ff49045..eb99b18 100644
--- a/bin/tests/system/Makefile.in
+++ b/bin/tests/system/Makefile.in
@@ -21,7 +21,7 @@ VERSION=@BIND9_VERSION@
 
 @BIND9_MAKE_INCLUDES@
 
-SUBDIRS =	dlzexternal lwresd rsabigexponent tkey
+SUBDIRS =	lwresd rsabigexponent tkey
 CINCLUDES =	${ISC_INCLUDES} ${DNS_INCLUDES}
 
 CDEFINES =	@USE_GSSAPI@