diff --git a/content/_code-samples/key-derivation/js/index.js b/content/_code-samples/key-derivation/js/index.js
index 07f4c91bf2..ee93bf68b6 100644
--- a/content/_code-samples/key-derivation/js/index.js
+++ b/content/_code-samples/key-derivation/js/index.js
@@ -62,7 +62,7 @@ class Seed {
                 return decoded
             } else {
                 //Raise Error
-                console.log('Raise error!')
+                throw new Error("incorrect decoded seed length")
             }
         }