diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1b6bf70..41a9ddc 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -45,6 +45,10 @@ jobs:
         run: nix-collect-garbage
 
       - name: Build new ${{ matrix.system }} system
+        env:
+          NIX_STORE_DIR: /root/nix/store
+          NIX_STATE_DIR: /root/nix/var/nix
+          NIX_LOG_DIR: /root/nix/var/log/nix
         run: |
           set -o pipefail
           nix build \