diff --git a/sys-libs/efivar/efivar-39.ebuild b/sys-libs/efivar/efivar-39-r1.ebuild
similarity index 94%
rename from sys-libs/efivar/efivar-39.ebuild
rename to sys-libs/efivar/efivar-39-r1.ebuild
index a88ff714f25d5..f980d4096561a 100644
--- a/sys-libs/efivar/efivar-39.ebuild
+++ b/sys-libs/efivar/efivar-39-r1.ebuild
@@ -42,7 +42,8 @@ src_configure() {
 
 	tc-ld-disable-gold
 
-	export libdir="/usr/$(get_libdir)"
+	export PREFIX="${EPREFIX}/usr"
+	export LIBDIR="${EPREFIX}/usr/$(get_libdir)"
 
 	# https://bugs.gentoo.org/562004
 	unset LIBS