diff --git a/cddl/lib/Makefile b/cddl/lib/Makefile
index 94a93a13ea8..138f60740ee 100644
--- a/cddl/lib/Makefile
+++ b/cddl/lib/Makefile
@@ -11,7 +11,9 @@ SUBDIR=	libavl \
 
 .if ${MK_ZFS} != "no"
 _libzfs=	libzfs
+.if ${MK_LIBTHR} != "no" || ${MK_LIBPTHREAD} != "no"
 _libzpool=	libzpool
 .endif
+.endif
 
 .include <bsd.subdir.mk>
diff --git a/cddl/usr.bin/Makefile b/cddl/usr.bin/Makefile
index 95e5ac49878..2ca99cbe109 100644
--- a/cddl/usr.bin/Makefile
+++ b/cddl/usr.bin/Makefile
@@ -5,7 +5,9 @@
 SUBDIR=	${_ztest}
 
 .if ${MK_ZFS} != "no"
+.if ${MK_LIBTHR} != "no" || ${MK_LIBPTHREAD} != "no"
 _ztest=	ztest
 .endif
+.endif
 
 .include <bsd.subdir.mk>
diff --git a/cddl/usr.sbin/Makefile b/cddl/usr.sbin/Makefile
index 1be350108b4..f8b81fcdd1f 100644
--- a/cddl/usr.sbin/Makefile
+++ b/cddl/usr.sbin/Makefile
@@ -5,7 +5,9 @@
 SUBDIR=	${_zdb}
 
 .if ${MK_ZFS} != "no"
+.if ${MK_LIBTHR} != "no" || ${MK_LIBPTHREAD} != "no"
 _zdb=	zdb
 .endif
+.endif
 
 .include <bsd.subdir.mk>