diff --git a/pkgs/by-name/pa/parallel-disk-usage/package.nix b/pkgs/by-name/pa/parallel-disk-usage/package.nix
index 9c7549fb9a62..56c371171665 100644
--- a/pkgs/by-name/pa/parallel-disk-usage/package.nix
+++ b/pkgs/by-name/pa/parallel-disk-usage/package.nix
@@ -21,5 +21,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/KSXGitHub/parallel-disk-usage";
     license = licenses.asl20;
     maintainers = [maintainers.peret];
+    mainProgram = "pdu";
   };
 }