From d0e7fcf8fe97aafe0f7a793d71a6a9c5435565dd Mon Sep 17 00:00:00 2001
From: Nikkuss <Scuggo@pm.me>
Date: Mon, 17 Mar 2025 12:17:20 +0400
Subject: [PATCH] fix expression

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

diff --git a/lib.nix b/lib.nix
index 9e05c84..e643a32 100644
--- a/lib.nix
+++ b/lib.nix
@@ -128,7 +128,7 @@ in
           echo
           echo "PostgreSQL is setting up the initial database"
           echo
-          if [[ -z "$PGHOST" ]]; then
+          if [[ -z "$${PGHOST+x}" ]]; then
             OLDPGHOST=""
           else
             OLDPGHOST="$PGHOST"