diff --git a/src/parse-result.test.ts b/src/parse-result.test.ts
index 978cf07c..27ee801e 100644
--- a/src/parse-result.test.ts
+++ b/src/parse-result.test.ts
@@ -1257,6 +1257,14 @@ describe('ember-template-recast', function () {
 
       expect(print(ast)).toEqual('<div class="hahah {{foo}}"></div>');
     });
+
+    test('quotes are preserved when updating an AttrNode name - issue #319', function () {
+      let template = '<div @class="{{if foo "bar"}} baz" />';
+
+      let ast = parse(template) as any;
+      ast.body[0].attributes[0].name = 'class';
+      expect(print(ast)).toEqual('<div class="{{if foo "bar"}} baz" />');
+    });
   });
 
   describe('HashPair', function () {
diff --git a/src/parse-result.ts b/src/parse-result.ts
index 966f0cdc..ae56abc5 100644
--- a/src/parse-result.ts
+++ b/src/parse-result.ts
@@ -961,6 +961,10 @@ export default class ParseResult {
           const wasQuotableValue = attrNode.value.type === 'TextNode';
 
           if (dirtyFields.has('name')) {
+            if (!wasQuotableValue) {
+              quote = '';
+            }
+
             nameSource = ast.name;
 
             dirtyFields.delete('name');