diff --git a/script/scaffold/model.py b/script/scaffold/model.py
index 93801f973ea..019ed33fad1 100644
--- a/script/scaffold/model.py
+++ b/script/scaffold/model.py
@@ -50,7 +50,7 @@ class Info:
         """Update the integration manifest."""
         print(f"Updating {self.domain} manifest: {kwargs}")
         self.manifest_path.write_text(
-            json.dumps({**self.manifest(), **kwargs}, indent=2)
+            json.dumps({**self.manifest(), **kwargs}, indent=2 + "\n")
         )
 
     @property
@@ -67,4 +67,6 @@ class Info:
     def update_strings(self, **kwargs) -> None:
         """Update the integration strings."""
         print(f"Updating {self.domain} strings: {list(kwargs)}")
-        self.strings_path.write_text(json.dumps({**self.strings(), **kwargs}, indent=2))
+        self.strings_path.write_text(
+            json.dumps({**self.strings(), **kwargs}, indent=2) + "\n"
+        )