diff --git a/pkgs/applications/window-managers/i3/balance-workspace.nix b/pkgs/applications/window-managers/i3/balance-workspace.nix
index f3c2e13fbdcb..bb0ea94e77c3 100644
--- a/pkgs/applications/window-managers/i3/balance-workspace.nix
+++ b/pkgs/applications/window-managers/i3/balance-workspace.nix
@@ -19,5 +19,6 @@ buildPythonPackage rec {
     homepage = "https://pypi.org/project/i3-balance-workspace/";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ pacien ];
+    mainProgram = "i3_balance_workspace";
   };
 }