diff --git a/lib/modules/scaffolding-react/index.js b/lib/modules/scaffolding-react/index.js
index 5d3f3423..5522c019 100644
--- a/lib/modules/scaffolding-react/index.js
+++ b/lib/modules/scaffolding-react/index.js
@@ -53,7 +53,7 @@ class ScaffoldingReact {
         const filename = contract.className.toLowerCase() + '.' + extension;
         const filePath = './app/' + filename;
         if (fs.existsSync(filePath)){
-          //  throw new Error("file '" + filePath + "' already exists");
+            throw new Error("file '" + filePath + "' already exists");
         }
 
         const templatePath = fs.embarkPath('lib/modules/scaffolding-react/templates/' + templateFilename);