diff --git a/security/py-libnacl/Makefile b/security/py-libnacl/Makefile
index dd1b8aa44aec1..b7bda16274a81 100644
--- a/security/py-libnacl/Makefile
+++ b/security/py-libnacl/Makefile
@@ -15,11 +15,9 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 LIB_DEPENDS=	libsodium.so:security/libsodium
 
 USES=		python:3.6+
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent distutils unittest
 
 NO_ARCH=	yes
-
-do-test:
-	cd ${WRKSRC} && ${PYTHON_CMD} -m unittest discover -s tests -v
+TEST_ARGS=	discover -s tests
 
 .include <bsd.port.mk>