Index: head/Makefile.inc1
===================================================================
--- head/Makefile.inc1
+++ head/Makefile.inc1
@@ -557,6 +557,10 @@
 	mkdir -p ${WORLDTMP}${TESTSBASE}
 	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
 	    -p ${WORLDTMP}${TESTSBASE} >/dev/null
+.if ${MK_DEBUG_FILES} != "no"
+	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
+	    -p ${WORLDTMP}/usr/lib/debug/${TESTSBASE} >/dev/null
+.endif
 .endif
 .for _mtree in ${LOCAL_MTREE}
 	mtree -deU -f ${.CURDIR}/${_mtree} -p ${WORLDTMP} > /dev/null
@@ -892,6 +896,10 @@
 	-mkdir -p ${DESTDIR}/${DISTDIR}/${dist}${TESTSBASE}
 	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
 	    -p ${DESTDIR}/${DISTDIR}/${dist}${TESTSBASE} >/dev/null
+.if ${MK_DEBUG_FILES} != "no"
+	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
+	    -p ${DESTDIR}/${DISTDIR}/${dist}/usr/lib/debug/${TESTSBASE} >/dev/null
+.endif
 .endif
 .if defined(NO_ROOT)
 	${IMAKEENV} mtree -C -f ${.CURDIR}/etc/mtree/BSD.root.dist | \
Index: head/etc/Makefile
===================================================================
--- head/etc/Makefile
+++ head/etc/Makefile
@@ -343,6 +343,7 @@
 .endif
 .if ${MK_TESTS} != "no"
 MTREES+=	mtree/BSD.tests.dist		${TESTSBASE}
+MTREES+=	mtree/BSD.tests.dist		/usr/lib/debug/${TESTSBASE}
 .endif
 .if ${MK_SENDMAIL} != "no"
 MTREES+=	mtree/BSD.sendmail.dist		/
Index: head/etc/mtree/BSD.debug.dist
===================================================================
--- head/etc/mtree/BSD.debug.dist
+++ head/etc/mtree/BSD.debug.dist
@@ -61,6 +61,8 @@
             ..
             sbin
             ..
+            tests
+            ..
         ..
     ..
 ..