diff --git a/Makefile.inc1 b/Makefile.inc1
index 1cdefc948cd9..32be188ccb26 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -558,6 +558,7 @@ _worldtmp:
 	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
 	    -p ${WORLDTMP}${TESTSBASE} >/dev/null
 .if ${MK_DEBUG_FILES} != "no"
+	mkdir -p ${WORLDTMP}/usr/lib/debug/${TESTSBASE}
 	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.tests.dist \
 	    -p ${WORLDTMP}/usr/lib/debug/${TESTSBASE} >/dev/null
 .endif