diff --git a/plugins/languages/treesitter.nix b/plugins/languages/treesitter.nix
index eb3f13c6..7daa8c52 100644
--- a/plugins/languages/treesitter.nix
+++ b/plugins/languages/treesitter.nix
@@ -81,7 +81,7 @@ in
 
       grammarPackages = mkOption {
         type = with types; listOf package;
-        default = pkgs.tree-sitter.allGrammars;
+        default = cfg.package.passthru.allGrammars;
         description = "Grammar packages to install";
       };