diff --git a/www/firefox-esr/Makefile b/www/firefox-esr/Makefile
index 507e991c60c5d..f0e563d8b0929 100644
--- a/www/firefox-esr/Makefile
+++ b/www/firefox-esr/Makefile
@@ -2,6 +2,7 @@
 
 PORTNAME=	firefox
 DISTVERSION=	91.13.0
+PORTEPOCH=	1
 CATEGORIES=	www wayland
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}esr/source \
 		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}esr-candidates/build1/source