diff --git a/bin/tests/Makefile.in b/bin/tests/Makefile.in
index 0c2ecfda3a..6e312887a2 100644
--- a/bin/tests/Makefile.in
+++ b/bin/tests/Makefile.in
@@ -32,9 +32,8 @@ ISCCFGDEPLIBS = ../../lib/isccfg/libisccfg.@A@
 
 LIBS =		@LIBS@
 
-SUBDIRS =	atomic db dst master mem hashes names \
-		net rbt resolver sockaddr tasks timers system \
-		@PKCS11_TOOLS@
+SUBDIR =	atomic db dst master mem hashes names net rbt resolver \
+		sockaddr tasks timers system @PKCS11_TOOLS@
 
 TESTDIRS =	system