diff --git a/emulators/wine-devel/Makefile b/emulators/wine-devel/Makefile
index 7093c029dbe3..48eb26325d62 100644
--- a/emulators/wine-devel/Makefile
+++ b/emulators/wine-devel/Makefile
@@ -16,6 +16,7 @@ MASTER_SITES=	SF/${PORTNAME}/Source \
 MAINTAINER=	gerald@FreeBSD.org
 COMMENT=	Microsoft Windows compatibility layer for Unix-like systems
 
+BUILD_DEPENDS=	${LOCALBASE}/bin/flex:${PORTSDIR}/devel/flex
 LIB_DEPENDS=	fontconfig.1:${PORTSDIR}/x11-fonts/fontconfig \
 		freetype.9:${PORTSDIR}/print/freetype2 \
 		jpeg.10:${PORTSDIR}/graphics/jpeg \
@@ -29,7 +30,8 @@ CONFIGURE_ARGS=	--datadir=${DATADIR} --verbose --disable-tests \
 		--without-gsm --without-mpg123 --without-openal \
 		--without-sane --without-xcursor
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
-		LDFLAGS="-L${LOCALBASE}/lib"
+		LDFLAGS="-L${LOCALBASE}/lib" \
+		FLEX="${LOCALBASE}/bin/flex"
 USE_LDCONFIG=	${PREFIX}/lib ${PREFIX}/lib/wine
 MAKE_JOBS_SAFE=	yes
 MAN1=		widl.1 wine.1 winebuild.1 winedbg.1 winedump.1 winegcc.1 \
diff --git a/emulators/wine/Makefile b/emulators/wine/Makefile
index 7093c029dbe3..48eb26325d62 100644
--- a/emulators/wine/Makefile
+++ b/emulators/wine/Makefile
@@ -16,6 +16,7 @@ MASTER_SITES=	SF/${PORTNAME}/Source \
 MAINTAINER=	gerald@FreeBSD.org
 COMMENT=	Microsoft Windows compatibility layer for Unix-like systems
 
+BUILD_DEPENDS=	${LOCALBASE}/bin/flex:${PORTSDIR}/devel/flex
 LIB_DEPENDS=	fontconfig.1:${PORTSDIR}/x11-fonts/fontconfig \
 		freetype.9:${PORTSDIR}/print/freetype2 \
 		jpeg.10:${PORTSDIR}/graphics/jpeg \
@@ -29,7 +30,8 @@ CONFIGURE_ARGS=	--datadir=${DATADIR} --verbose --disable-tests \
 		--without-gsm --without-mpg123 --without-openal \
 		--without-sane --without-xcursor
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
-		LDFLAGS="-L${LOCALBASE}/lib"
+		LDFLAGS="-L${LOCALBASE}/lib" \
+		FLEX="${LOCALBASE}/bin/flex"
 USE_LDCONFIG=	${PREFIX}/lib ${PREFIX}/lib/wine
 MAKE_JOBS_SAFE=	yes
 MAN1=		widl.1 wine.1 winebuild.1 winedbg.1 winedump.1 winegcc.1 \