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-rw-r--r--nixpkgs/pkgs/tools/filesystems/duff/default.nix1
1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/tools/filesystems/duff/default.nix b/nixpkgs/pkgs/tools/filesystems/duff/default.nix
index f980c7613332..4c6f3caff79a 100644
--- a/nixpkgs/pkgs/tools/filesystems/duff/default.nix
+++ b/nixpkgs/pkgs/tools/filesystems/duff/default.nix
@@ -29,6 +29,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "Quickly find duplicate files";
+    mainProgram = "duff";
     longDescription = ''
       Duff is a Unix command-line utility for quickly finding duplicates in
       a given set of files.