setup-apkrepos: fix two digit selection

fixes https://gitlab.alpinelinux.org/alpine/alpine-conf/-/issues/10461

Thanks to Timo Ketola for the fix.

1 files changed, 1 insertions, 1 deletions

diff --git a/setup-apkrepos.in b/setup-apkrepos.in
index e73e627..2fce913 100644
--- a/setup-apkrepos.in
+++ b/setup-apkrepos.in
@@ -91,7 +91,7 @@ add_from_list() {
 		return 1
 	fi
 	set $MIRRORS
-	eval "mirror=\$$mirror_index"
+	eval "mirror=\${$mirror_index}"
 	add_mirror "$mirror"
 }