diff --git a/pkgs/by-name/pa/paperless-ngx/package.nix b/pkgs/by-name/pa/paperless-ngx/package.nix
index 72e2e6b9f935..91603b6b219d 100644
--- a/pkgs/by-name/pa/paperless-ngx/package.nix
+++ b/pkgs/by-name/pa/paperless-ngx/package.nix
@@ -316,6 +316,7 @@ python.pkgs.buildPythonApplication rec {
     changelog = "https://github.com/paperless-ngx/paperless-ngx/releases/tag/v${version}";
     license = licenses.gpl3Only;
     platforms = platforms.unix;
+    mainProgram = "paperless-ngx";
     maintainers = with maintainers; [
       leona
       SuperSandro2000