diff --git a/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix b/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
index c6c995700075..59b5ac48ce9b 100644
--- a/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
+++ b/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
@@ -1,6 +1,6 @@
 # generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar, fetchFromBitbucket, fetchFromGitHub, fetchFromGitLab, fetchFromGitea, fetchFromGitiles, fetchFromRepoOrCz, fetchFromSourcehut, fetchgit }:
+{ buildGrammar, fetchFromBitbucket, fetchFromGitHub, fetchFromGitLab, fetchFromGitea, fetchFromGitiles, fetchFromRepoOrCz, fetchFromSourcehut, fetchgit, fetchhg, fetchsvn }:
 
 {
   ada = buildGrammar {
diff --git a/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py b/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
index 6b297cd59157..6963a82d46b6 100755
--- a/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
+++ b/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
@@ -60,10 +60,9 @@ def generate_grammar(item):
 
 generated_file = """# generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar"""
+{ buildGrammar, """
 
-for fetcher in subprocess.check_output(["nurl", "-L"], text=True).splitlines():
-    generated_file += f", {fetcher}"
+generated_file += subprocess.check_output(["nurl", "-Ls", ", "], text=True)
 
 generated_file += """ }: