diff --git a/set_info.yml b/set_info.yml
index 90566e4c..348ae89f 100644
--- a/set_info.yml
+++ b/set_info.yml
@@ -5,7 +5,7 @@
 #
 # code: "FSN"
 # name: "Full Set Name"
-# size: 274
+# size: 274                                                                 #if set size not yet known, comment all line out! e.g. "#size: ?"
 # releaseDate: "2050-02-28"
 # type: "expansion"
 #