diff --git a/core/modules/widgets/navigator.js b/core/modules/widgets/navigator.js
index fbd340935..f4f216960 100755
--- a/core/modules/widgets/navigator.js
+++ b/core/modules/widgets/navigator.js
@@ -277,7 +277,8 @@ NavigatorWidget.prototype.makeDraftTiddler = function(targetTitle) {
 	}
 	// Get the current value of the tiddler we're editing
 	var tiddler = this.wiki.getTiddler(targetTitle);
-	var defaultFields = { type: "text/markdown" };
+	var defaultType = this.wiki.getTiddler("$:/config/DefaultMissingType");
+	var defaultFields = { type: defaultType !== null ? defaultType.fields['text'].trim() : "" };
 	// Save the initial value of the draft tiddler
 	draftTitle = this.generateDraftTitle(targetTitle);
 	var draftTiddler = new $tw.Tiddler({
diff --git a/core/wiki/config/DefaultMissingType.tid b/core/wiki/config/DefaultMissingType.tid
new file mode 100644
index 000000000..db2fc745e
--- /dev/null
+++ b/core/wiki/config/DefaultMissingType.tid
@@ -0,0 +1,3 @@
+title: $:/config/DefaultMissingType
+
+
diff --git a/editions/markdowndemo/tiddlers/DefaultMissingType.tid b/editions/markdowndemo/tiddlers/DefaultMissingType.tid
new file mode 100644
index 000000000..2f725cd4c
--- /dev/null
+++ b/editions/markdowndemo/tiddlers/DefaultMissingType.tid
@@ -0,0 +1,3 @@
+title: $:/config/DefaultMissingType
+
+text/markdown