diff --git a/_data/tags.yml b/_data/tags.yml
index af48a82..79d2545 100644
--- a/_data/tags.yml
+++ b/_data/tags.yml
@@ -1,3 +1,6 @@
+# Note:
+# If you are using the createtag script, don't leave an blank line at the end of this file.
+# In other words, the last line must be the last tag in the allowed-tags list.
 allowed-tags:
   - getting_started
   - content_types
@@ -9,4 +12,4 @@ allowed-tags:
   - collaboration
   - news
   - troubleshooting
-  - mobile
\ No newline at end of file
+  - mobile