diff --git a/cad/opentimer/Makefile b/cad/opentimer/Makefile
index 00abe79cf029..c18a4399f4b0 100644
--- a/cad/opentimer/Makefile
+++ b/cad/opentimer/Makefile
@@ -1,33 +1,37 @@
 PORTNAME=	opentimer
 PORTVERSION=	g20210726
 CATEGORIES=	cad
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	High-performance timing analysis tool for VLSI systems
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		cmake compiler:c++17-lang tcl
+USES=		cmake compiler:c++17-lang python:test shebangfix tcl
 USE_GCC=	yes # fails to build with clang-11: https://github.com/OpenTimer/OpenTimer/issues/48
 
+SHEBANG_FILES=	inttest/*.py
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	OpenTimer
 GH_PROJECT=	OpenTimer
 GH_TAGNAME=	18d28ff
 
+TEST_TARGET=	test
+
 PLIST_FILES=	bin/ot-shell \
 		bin/ot-tau15 \
 		bin/ot-tau18 \
 		bin/ot-utility
 
 do-install: # see https://github.com/OpenTimer/OpenTimer/issues/47
 .for e in ot-shell ot-tau15 ot-tau18 ot-utility
 	${INSTALL_PROGRAM} ${WRKSRC}/bin/${e} ${STAGEDIR}${PREFIX}/bin
 .endfor
 
-do-test: # runs the script suggested in https://github.com/OpenTimer/OpenTimer
+quick-test: # runs the script suggested in https://github.com/OpenTimer/OpenTimer
 	@cd ${WRKSRC} && \
 		bin/ot-shell < ${FILESDIR}/test.txt
 
 .include <bsd.port.mk>