From a87f1f997cdab6a8cc4025a99f4d4a0491aa2a6e Mon Sep 17 00:00:00 2001
From: Ana Hobden <operator@hoverbear.org>
Date: Wed, 16 Nov 2022 13:11:38 -0800
Subject: [PATCH] Fixup lack of default param (#55)

---
 nix-install.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nix-install.sh b/nix-install.sh
index 53527b4..b0e7892 100755
--- a/nix-install.sh
+++ b/nix-install.sh
@@ -478,7 +478,7 @@ downloader() {
         get_ciphersuites_for_curl
         _ciphersuites="$RETVAL"
         if [ -n "$_ciphersuites" ]; then
-            if [ -n "$NIX_INSTALL_FORCE_ALLOW_HTTP" ]; then
+            if [ -n "${NIX_INSTALL_FORCE_ALLOW_HTTP-}" ]; then
                 _err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1)
             else
                 _err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1)