diff --git a/src/library.cr b/src/library.cr
index 00a9a0e..e714a51 100644
--- a/src/library.cr
+++ b/src/library.cr
@@ -192,10 +192,7 @@ class TitleInfo
 	# { user1: { entry1: 10, entry2: 0 } }
 	include JSON::Serializable
 
-	@[JSON::Field(key: "comment")]
 	property comment = "Generated by Mango. DO NOT EDIT!"
-
-	@[JSON::Field(key: "progress")]
 	property progress : Hash(String, Hash(String, Int32))
 
 	def initialize(title_dir)