diff --git a/core/modules/utils/filesystem.js b/core/modules/utils/filesystem.js
index cb542493f..1ba34323e 100644
--- a/core/modules/utils/filesystem.js
+++ b/core/modules/utils/filesystem.js
@@ -238,7 +238,7 @@ exports.generateTiddlerFileInfo = function(tiddler,options) {
 	} else {
 		// Save as a .tid or a text/binary file plus a .meta file
 		var tiddlerType = tiddler.fields.type || "text/vnd.tiddlywiki";
-		if(tiddlerType === "text/vnd.tiddlywiki") {
+		if(tiddlerType === "text/vnd.tiddlywiki" || tiddler.hasField("_canonical_uri")) {
 			// Save as a .tid file
 			fileInfo.type = "application/x-tiddler";
 			fileInfo.hasMetaFile = false;