diff --git a/mail/elm/Makefile b/mail/elm/Makefile
index 42a2ed8d79e..b781c1c6b8d 100644
--- a/mail/elm/Makefile
+++ b/mail/elm/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.29 2019/02/18 14:27:25 espie Exp $
+# $OpenBSD: Makefile,v 1.30 2019/04/04 03:38:12 naddy Exp $
 
 COMMENT=	once-popular mail user agent
 
@@ -31,7 +31,7 @@ pre-configure:
 	@mv ${WRKSRC}/nls/LANGS.new ${WRKSRC}/nls/LANGS
 
 post-configure:
-	@perl -pi.bak -e 's,\$${DESTDIR},,g;' \
+	@perl -pi.bak -e 's,\$$\{DESTDIR},,g;' \
 		${WRKBUILD}/config.h ${WRKBUILD}/hdrs/sysdefs.h \
 		${WRKBUILD}/utils/{checkalias,listalias,messages,printmail}
 	@perl -pi.bak -e 's,-..MAKEFLAGS..,,g;' ${WRKBUILD}/Makefile
diff --git a/security/hlfl/Makefile b/security/hlfl/Makefile
index fc9a2e55826..87be9d5cf99 100644
--- a/security/hlfl/Makefile
+++ b/security/hlfl/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.18 2016/03/11 19:59:16 naddy Exp $
+# $OpenBSD: Makefile,v 1.19 2019/04/04 03:38:12 naddy Exp $
 
 COMMENT =		high level firewall language
 
@@ -26,7 +26,7 @@ CONFIGURE_STYLE =	gnu
 NO_TEST =		Yes
 
 pre-install:
-	@perl -pi -e 's#\$${prefix}\/share\/hlfl\/services\.hlfl#${SYSCONFDIR}/services.hlfl#' ${WRKSRC}/doc/hlfl.1
-	@perl -pi -e 's#\$${prefix}\/share#${PREFIX}/share/examples#' ${WRKSRC}/doc/hlfl.1
+	@perl -pi -e 's#\$$\{prefix}\/share\/hlfl\/services\.hlfl#${SYSCONFDIR}/services.hlfl#' ${WRKSRC}/doc/hlfl.1
+	@perl -pi -e 's#\$$\{prefix}\/share#${PREFIX}/share/examples#' ${WRKSRC}/doc/hlfl.1
 
 .include <bsd.port.mk>