diff --git a/repository/TiddlyWiki/TiddlyWiki.class.st b/repository/TiddlyWiki/TiddlyWiki.class.st
index dd7a550..2d7d4df 100644
--- a/repository/TiddlyWiki/TiddlyWiki.class.st
+++ b/repository/TiddlyWiki/TiddlyWiki.class.st
@@ -281,6 +281,7 @@ TiddlyWiki >> exportJSONTiddlersTagged: aTag in: aFolder [
 TiddlyWiki >> exportJSONTiddlersTagged: aTag in: aFolder named: aFileName [
 
 	| taggedTiddlers jsonString |
+	self tiddlers.
 	taggedTiddlers := self taggedWith: aTag.
 	jsonString := '[', (',' join: (taggedTiddlers collect: [ :each | each asJsonString ])), ']'.
 	^ MarkupFile exportAsFileOn: aFolder / (aFileName, '.json') containing: jsonString