--- a/src/eric7/Project/UserProjectFile.py	Sun Dec 31 18:01:05 2023 +0100
+++ b/src/eric7/Project/UserProjectFile.py	Sun Dec 31 20:27:52 2023 +0100
@@ -61,7 +61,7 @@
         userProjectDict["user_data"] = self.__project.pudata
 
         try:
-            jsonString = json.dumps(userProjectDict, indent=2)
+            jsonString = json.dumps(userProjectDict, indent=2) + "\n"
             with open(filename, "w") as f:
                 f.write(jsonString)
         except (OSError, TypeError) as err: