diff --git a/core/modules/widgets/parameters.js b/core/modules/widgets/parameters.js
index ef62ef4b5..890e9862a 100644
--- a/core/modules/widgets/parameters.js
+++ b/core/modules/widgets/parameters.js
@@ -70,7 +70,7 @@ ParametersWidget.prototype.execute = function() {
 		// Assign any metaparameters
 		$tw.utils.each(pointer.getTransclusionMetaParameters(),function(getValue,name) {
 			var variableName = self.getAttribute("$" + name);
-			if(variableName !== undefined) {
+			if(variableName) {
 				self.setVariable(variableName,getValue(name));
 			}
 		});
diff --git a/core/modules/widgets/transclude.js b/core/modules/widgets/transclude.js
index 205947c0c..684032eae 100755
--- a/core/modules/widgets/transclude.js
+++ b/core/modules/widgets/transclude.js
@@ -330,11 +330,11 @@ Get one of the special parameters to be provided by the parameters widget
 TranscludeWidget.prototype.getTransclusionMetaParameters = function() {
 	var self = this;
 	return {
-		"parseAsInline": function() {
-			return self.parseAsInline ? "yes" : "no";
+		"parseMode": function() {
+			return self.parseAsInline ? "inline" : "block";
 		},
 		"parseTreeNodes": function() {
-			return JSON.stringify(self.parseTreeNode);
+			return JSON.stringify(self.parseTreeNode.children || []);
 		},
 		"slotFillParseTreeNodes": function() {
 			return JSON.stringify(self.slotFillParseTrees);
diff --git a/editions/test/tiddlers/tests/data/transclude/Parameterised-Mode.tid b/editions/test/tiddlers/tests/data/transclude/Parameterised-Mode.tid
new file mode 100644
index 000000000..04f5bbb04
--- /dev/null
+++ b/editions/test/tiddlers/tests/data/transclude/Parameterised-Mode.tid
@@ -0,0 +1,29 @@
+title: Transclude/Parameterised/Mode
+description: Parameterised transclusion using the $parseMode attribute
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+
+<$transclude $tiddler='TiddlerOne' one='Ferret'>
+
+This is a block
+
+</$transclude>
+
+<$transclude $tiddler='TiddlerOne'>
+This is inline
+</$transclude>
++
+title: TiddlerOne
+
+\whitespace trim
+<$parameters $parseMode="@parseMode">
+	<$text text=<<@parseMode>>/>
+</$parameters>
++
+title: ExpectedResult
+
+<p>block</p><p>inline</p>
\ No newline at end of file
diff --git a/editions/test/tiddlers/tests/data/transclude/Parameterised-ParseTreeNodes.tid b/editions/test/tiddlers/tests/data/transclude/Parameterised-ParseTreeNodes.tid
new file mode 100644
index 000000000..916e2abfb
--- /dev/null
+++ b/editions/test/tiddlers/tests/data/transclude/Parameterised-ParseTreeNodes.tid
@@ -0,0 +1,29 @@
+title: Transclude/Parameterised/ParseTreeNodes
+description: Parameterised transclusion using the $parseTreeNodes attribute
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+
+<$transclude $tiddler='TiddlerOne' one='Ferret'>
+
+This is a block
+
+</$transclude>
+
+<$transclude $tiddler='TiddlerOne'>
+This is inline
+</$transclude>
++
+title: TiddlerOne
+
+\whitespace trim
+<$parameters $parseTreeNodes="@parseTreeNodes">
+	<$text text=<<@parseTreeNodes>>/>
+</$parameters>
++
+title: ExpectedResult
+
+<p>[{"type":"element","tag":"p","children":[{"type":"text","text":"This is a block","start":68,"end":83}],"start":68,"end":83}]</p><p>[{"type":"text","text":"This is inline","start":136,"end":152}]</p>
\ No newline at end of file
diff --git a/editions/test/tiddlers/tests/data/transclude/Parameterised-SlotFillParseTreeNodes.tid b/editions/test/tiddlers/tests/data/transclude/Parameterised-SlotFillParseTreeNodes.tid
new file mode 100644
index 000000000..679748375
--- /dev/null
+++ b/editions/test/tiddlers/tests/data/transclude/Parameterised-SlotFillParseTreeNodes.tid
@@ -0,0 +1,29 @@
+title: Transclude/Parameterised/SlotFillParseTreeNodes
+description: Parameterised transclusion using the $slotFillParseTreeNodes attribute
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+
+<$transclude $tiddler='TiddlerOne' one='Ferret'>
+<$fill $name="one">This is first</$fill>
+<$fill $name="two">But this is second</$fill>
+</$transclude>
+
+<$transclude $tiddler='TiddlerOne'>
+<$fill $name="one">This is first
+<$fill $name="two">But this is second</$fill></$fill>
+</$transclude>
++
+title: TiddlerOne
+
+\whitespace trim
+<$parameters $slotFillParseTreeNodes="@slotFillParseTreeNodes">
+	<$text text={{{ [<@slotFillParseTreeNodes>jsonindexes[]join[,]] }}}/>
+</$parameters>
++
+title: ExpectedResult
+
+<p>one,ts-raw,two</p><p>one,ts-raw</p>
\ No newline at end of file