diff --git a/pkgs/applications/editors/vim/plugins/utils/nvim-treesitter/update.py b/pkgs/applications/editors/vim/plugins/utils/nvim-treesitter/update.py
index 7e6650ace1d2..55363c9db84f 100755
--- a/pkgs/applications/editors/vim/plugins/utils/nvim-treesitter/update.py
+++ b/pkgs/applications/editors/vim/plugins/utils/nvim-treesitter/update.py
@@ -62,11 +62,18 @@ def update_grammars(nvim_treesitter_dir: str):
 
     generated_file = """# generated by pkgs/applications/editors/vim/plugins/utils/nvim-treesitter/update.py
 
-{ buildGrammar, """
+{
+  buildGrammar,
+  """
 
-    generated_file += subprocess.check_output(["nurl", "-Ls", ", "], text=True)
+    # Get the output and format it properly
+    nurl_output = subprocess.check_output(["nurl", "-Ls", ","], text=True).strip()
+    # Add proper indentation (2 spaces) to the comma-separated list
+    indented_output = nurl_output.replace(",", ",\n  ")
+    generated_file += indented_output
 
-    generated_file += """ }:
+    generated_file += """,
+}:
 
 {
 """