1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/flit-core/default.nix b/nixpkgs/pkgs/development/python-modules/flit-core/default.nix
index fc4d6479caee..a4e0716cf344 100644
--- a/nixpkgs/pkgs/development/python-modules/flit-core/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/flit-core/default.nix
@@ -10,7 +10,7 @@ buildPythonPackage rec {
 
   inherit (flit) src patches;
 
-  sourceRoot = "source/flit_core";
+  sourceRoot = "${src.name}/flit_core";
 
   # Tests are run in the "flit" package.
   doCheck = false;