diff --git a/pkgs/applications/misc/darkman/default.nix b/pkgs/applications/misc/darkman/default.nix
index 89678b7d0fa85..1b33b9fac3ed8 100644
--- a/pkgs/applications/misc/darkman/default.nix
+++ b/pkgs/applications/misc/darkman/default.nix
@@ -44,5 +44,6 @@ buildGoModule rec {
     license = licenses.isc;
     maintainers = [ maintainers.ajgrf ];
     platforms = platforms.linux;
+    mainProgram = "darkman";
   };
 }