diff --git a/science/qbox/Makefile b/science/qbox/Makefile
index 26cf63461ad5..6eaf55eb80d3 100644
--- a/science/qbox/Makefile
+++ b/science/qbox/Makefile
@@ -30,7 +30,8 @@ WRKSRC_SUBDIR=	src
 MAKE_ARGS=	TARGET=freebsd
 
 ALL_TARGET=	qb
-TEST_TARGET=	tests # only builds tests, but doesn't run them: https://github.com/qboxcode/qbox-public/issues/6, tests fail to link, see https://github.com/qboxcode/qbox-public/issues/11
+TEST_TARGET=	tests
+TESTING_UNSAFE=	only builds tests, but doesn't run them: https://github.com/qboxcode/qbox-public/issues/6, tests fail to link, see https://github.com/qboxcode/qbox-public/issues/11
 
 PLIST_FILES=	bin/qb