diff --git a/lib/commands/print-failing.js b/lib/commands/print-failing.js
index 4cc4b3d5..90562138 100644
--- a/lib/commands/print-failing.js
+++ b/lib/commands/print-failing.js
@@ -18,13 +18,23 @@ module.exports = {
     let linter = new Linter();
     let templatesWithErrors = [];
 
-    let templateFiles = walkSync('app').filter(file => {
+    let appRoot;
+
+    if (project.isEmberCLIAddon()) {
+      appRoot = 'addon';
+    } else if (project.isModuleUnification()) {
+      appRoot = 'src';
+    } else {
+      appRoot = 'app';
+    }
+
+    let templateFiles = walkSync(appRoot).filter(file => {
       // remove any non-hbs files
       return path.extname(file) === '.hbs';
     });
 
     templateFiles.forEach(file => {
-      let filePath = path.join('app', file);
+      let filePath = path.join(appRoot, file);
       let contents = fs.readFileSync(filePath, { encoding: 'utf8' });
       let moduleId = path.join(modulePrefix, file).slice(0, -4);