diff --git a/scripts/Common/OS/setup.fish b/scripts/Common/OS/setup.fish
index a0429da6..71a26147 100755
--- a/scripts/Common/OS/setup.fish
+++ b/scripts/Common/OS/setup.fish
@@ -81,6 +81,8 @@ function runSetup
 
     function prepareNix -V dir
         source "$dir/../../lib/nix.fish"
+        source "$dir/../../lib/settings.fish"
+        set -l mountDir (getOSConfig partition.rootDir)
 
         # Copy `nixpkgs` channel
         mkdir -p (dirname "$mountDir/$nixPkgsDir")