diff --git a/dev_tools/route_extract.py b/dev_tools/route_extract.py
index 485414aa3..cfa1cf5d3 100644
--- a/dev_tools/route_extract.py
+++ b/dev_tools/route_extract.py
@@ -95,7 +95,7 @@ class RouteExtract:
 
 def model_to_json(model, file):
     content = model.model_dump_json(indent=2)
-    with open(file, 'w', encoding='utf-8') as f:
+    with open(file, 'w', encoding='utf-8', newline='') as f:
         f.write(content)