1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/tools/gendef/default.nix b/pkgs/development/tools/gendef/default.nix
index 9b2418486f17..d799a33f3127 100644
--- a/pkgs/development/tools/gendef/default.nix
+++ b/pkgs/development/tools/gendef/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-0vbAHSN+uwxoXXZtbuycP67PxjcB8Ftxd/Oij1gqE3Y=";
   };
 
-  sourceRoot = "mingw-w64/mingw-w64-tools/gendef";
+  sourceRoot = "${finalAttrs.src.name}/mingw-w64-tools/gendef";
 
   meta = {
     description = "A tool which generate def files from DLLs";