diff --git a/lib/generate.js b/lib/generate.js
index d9c75e317..c0aff6f0e 100644
--- a/lib/generate.js
+++ b/lib/generate.js
@@ -41,7 +41,7 @@ const defaults = {
 export default async function () {
   const s = Date.now()
   let errors = []
-  if (this.options.generate.minify === true) delete this.options.generate.minify
+  if (this.options.generate && this.options.generate.minify === true) delete this.options.generate.minify
   /*
   ** Set variables
   */