diff --git a/pkgs/tools/networking/sing-box/default.nix b/pkgs/tools/networking/sing-box/default.nix
index e54885698f47..0310829c5c29 100644
--- a/pkgs/tools/networking/sing-box/default.nix
+++ b/pkgs/tools/networking/sing-box/default.nix
@@ -68,5 +68,6 @@ buildGoModule rec {
     description = "The universal proxy platform";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ nickcao ];
+    mainProgram = "sing-box";
   };
 }