diff --git a/.gitea/workflows/build-rpm.yml b/.gitea/workflows/build-rpm.yml
index 78e076e..8eb2eec 100644
--- a/.gitea/workflows/build-rpm.yml
+++ b/.gitea/workflows/build-rpm.yml
@@ -11,6 +11,8 @@ on:
 jobs:
   rpm:
     runs-on: nixos
+    env:
+      NIX_CONFIG: builders=
     steps:
       - uses: actions/checkout@v4
 
diff --git a/scripts/build-rpm.sh b/scripts/build-rpm.sh
index 7e27d1d..16798c0 100755
--- a/scripts/build-rpm.sh
+++ b/scripts/build-rpm.sh
@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
+if ROOT_DIR=$(git -C "${PWD}" rev-parse --show-toplevel 2>/dev/null); then
+  ROOT_DIR="$ROOT_DIR"
+else
+  ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
+fi
 SPEC_FILE="$ROOT_DIR/packaging/prem2resolve.spec"
 
 if ! command -v rpmspec >/dev/null 2>&1; then