diff --git a/x11/disman/Makefile b/x11/disman/Makefile
index 2ff763bbfb68..cbb096ddbb5e 100644
--- a/x11/disman/Makefile
+++ b/x11/disman/Makefile
@@ -1,35 +1,40 @@
 PORTNAME=	disman
 DISTVERSIONPREFIX=	${PORTNAME}@
 DISTVERSION=	0.523.0
 CATEGORIES=	x11
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Qt/C++ display management library
 
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/COPYING.LIB
 
 TEST_DEPENDS=	${qt-testlib_PORT:T}>0:${qt-testlib_PORT}
 
 USES=		cmake:testing kde:5 qt:5
 USE_GITLAB=	yes
 USE_KDE=	ecm_build coreaddons
 USE_LDCONFIG=	yes
 USE_QT=		qmake_build buildtools_build core dbus gui
 GL_ACCOUNT=	kwinft
 GL_COMMIT=	fd261a3b0c8991d1deb81e2d78e575bd96f5be60
 PLIST_SUB=	VERSION=${PORTVERSION}
 
 OPTIONS_DEFINE=	WAYLAND X11
 OPTIONS_DEFAULT=WAYLAND X11
 OPTIONS_SUB=	yes
 
 WAYLAND_LIB_DEPENDS=	libWraplandClient.so:graphics/wrapland
 WAYLAND_USE=		KDE=wayland
 WAYLAND_CMAKE_BOOL_OFF=	${KF5Wayland Wrapland:L:S/^/CMAKE_DISABLE_FIND_PACKAGE_/}
 
 X11_USES=		xorg
 X11_USE=		QT=x11extras XORG=xcb
 X11_CMAKE_BOOL_OFF=	${Qt5X11Extras XCB:L:S/^/CMAKE_DISABLE_FIND_PACKAGE_/}
 
+post-patch:
+# Respect PREFIX for hwdata
+	@${REINPLACE_CMD} 's,/usr/share,${DATADIR:H},' \
+		${WRKSRC}/backends/edid.cpp
+
 .include <bsd.port.mk>