diff --git a/pkgs/by-name/la/languagetool/package.nix b/pkgs/by-name/la/languagetool/package.nix
index b97161cf4fe6..544ee8ecce7a 100644
--- a/pkgs/by-name/la/languagetool/package.nix
+++ b/pkgs/by-name/la/languagetool/package.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     maintainers = with lib.maintainers; [ edwtjo ];
     platforms = jre.meta.platforms;
     description = "Proofreading program for English, French German, Polish, and more";
+    mainProgram = "languagetool";
   };
 }