fix

Author: patricklx

addon.js

@@ -98,7 +98,8 @@ module.exports = {
       failOnBadImport: false,
       namespace: isDummy ? 'dummy' : name,
       imports: {},
-      useModifierHelperHelpers: ember.isAbove('v3.27.0-beta.2')
+      useModifierHelperHelpers: ember.isAbove('v3.27.0-beta.2'),
+      useHelperWrapper: !ember.isAbove('v3.27.0-beta.2'),
     }
     this._getBabelOptions().plugins.splice(0, 0, [require.resolve('./lib/hbs-imports-babel-plugin'), options]);
     this._super.included.call(this, arguments);
@@ -155,7 +156,8 @@ module.exports = {
           failOnBadImport: false,
           namespace: isDummy ? 'dummy' : name,
           imports: this.imports,
-          useModifierHelperHelpers: ember.isAbove('v3.27.0-beta.2')
+          useModifierHelperHelpers: ember.isAbove('v3.27.0-beta.2'),
+          useHelperWrapper: !ember.isAbove('v3.27.0-beta.2'),
         }
         tree = new TemplateImportProcessor(tree, options);
         return tree;