diff --git a/devel/expected/Makefile b/devel/expected/Makefile
index 7ba061123c07..a692246ca223 100644
--- a/devel/expected/Makefile
+++ b/devel/expected/Makefile
@@ -1,34 +1,40 @@
 PORTNAME=	expected
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.1.0
+PORTREVISION=	1
 CATEGORIES=	devel science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++11/14/17 std::expected with functional-style extensions
 WWW=		https://tl.tartanllama.xyz/en/latest/ \
 		https://github.com/TartanLlama/expected
 
 LICENSE=	CC0-1.0
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 TEST_DEPENDS=	catch2>0:devel/catch2
 
 USES=		cmake:testing localbase
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	TartanLlama
 
 CMAKE_OFF=	EXPECTED_BUILD_TESTS \
 		FETCHCONTENT_FULLY_DISCONNECTED # need connected mode for tests to fetch a specific old version of catch2
 CMAKE_TESTING_ON=	EXPECTED_BUILD_TESTS
 
 PLIST_FILES=	include/tl/expected.hpp \
 		share/cmake/tl-expected/tl-expected-config-version.cmake \
 		share/cmake/tl-expected/tl-expected-config.cmake \
 		share/cmake/tl-expected/tl-expected-targets.cmake
 
 NO_ARCH=	yes
 
+post-install: # workaround for https://github.com/TartanLlama/expected/issues/173
+	@${REINPLACE_CMD} -i '' \
+		-e 's/1\.0\.0/${PORTVERSION}/' \
+		${STAGEDIR}${PREFIX}/share/cmake/tl-expected/tl-expected-config-version.cmake
+
 # tests as of 1.1.0: 100% tests passed, 0 tests failed out of 1
 
 .include <bsd.port.mk>