diff --git a/pkgs/by-name/wh/whipper/package.nix b/pkgs/by-name/wh/whipper/package.nix
index 1d9019d97773..441cee30fe16 100644
--- a/pkgs/by-name/wh/whipper/package.nix
+++ b/pkgs/by-name/wh/whipper/package.nix
@@ -123,5 +123,6 @@ python3.pkgs.buildPythonApplication rec {
     maintainers = with maintainers; [ emily ];
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
+    mainProgram = "whipper";
   };
 }