diff --git a/pkgs/by-name/ar/arc-browser/package.nix b/pkgs/by-name/ar/arc-browser/package.nix
index 006f268d4b54..79c6da9d71d6 100644
--- a/pkgs/by-name/ar/arc-browser/package.nix
+++ b/pkgs/by-name/ar/arc-browser/package.nix
@@ -24,8 +24,8 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   installPhase = ''
     runHook preInstall
 
-    mkdir -p $out/Applications/Arc.app
-    cp -R . $out/Applications/Arc.app
+    mkdir -p "$out/Applications/Arc.app"
+    cp -R . "$out/Applications/Arc.app"
 
     runHook postInstall
   '';