diff --git a/build/release.nix b/build/release.nix
index c64c94a..71b809b 100644
--- a/build/release.nix
+++ b/build/release.nix
@@ -11,11 +11,11 @@ let
 					];
 				};
 			in
-				nixpkgsWithOverlays.lib.getAttr path nixpkgsWithOverlays;
+				nixpkgsWithOverlays.lib.getAttrFromPath path nixpkgsWithOverlays;
 
 	fakeOverlay = (import ../default.nix) null null;
 	packages = builtins.attrNames fakeOverlay.morepkgs;
-	generateBuilder = packageName: buildPath "morepkgs.${packageName}";
+	generateBuilder = packageName: buildPath ["morepkgs" packageName];
 
 	generatePackagePair = packageName: {
 		name = packageName;