diff --git a/zerver/management/commands/makemessages.py b/zerver/management/commands/makemessages.py
index 9560a5984f..8635fe086f 100644
--- a/zerver/management/commands/makemessages.py
+++ b/zerver/management/commands/makemessages.py
@@ -246,4 +246,4 @@ class Command(makemessages.Command):
 
             new_strings = self.get_new_strings(old_strings, translation_strings)
             with open(output_path, 'w') as writer:
-                json.dump(new_strings, writer, indent=2)
+                json.dump(new_strings, writer, indent=2, sort_keys=True)