diff --git a/pkgs/development/tools/build-managers/rake/default.nix b/pkgs/development/tools/build-managers/rake/default.nix
index d2f0a264ba74..9efb8881ab79 100644
--- a/pkgs/development/tools/build-managers/rake/default.nix
+++ b/pkgs/development/tools/build-managers/rake/default.nix
@@ -13,5 +13,6 @@ bundlerApp {
     license  = with licenses; mit;
     maintainers = with maintainers; [ manveru nicknovitski ];
     platforms = platforms.unix;
+    mainProgram = "rake";
   };
 }