diff --git a/package.nix b/package.nix
index 128ec13..51d2916 100644
--- a/package.nix
+++ b/package.nix
@@ -38,6 +38,7 @@ stdenvNoCC.mkDerivation {
     description = "GitHub to Forgejo migration script";
     homepage    = "https://git.rgbcu.be/RGBCube/GitHub2Forgejo";
     license     = licenses.gpl3Only;
+    mainProgram = "github2forgejo";
     maintainers = with maintainers; [ RGBCube ];
   };
 }