diff --git a/src/lib/user_error.js b/src/lib/user_error.js
index b1b7c78..863c785 100644
--- a/src/lib/user_error.js
+++ b/src/lib/user_error.js
@@ -9,8 +9,8 @@ class ExtendableError extends Error {
 
 class UserError extends ExtendableError {
   constructor(message) {
-    this.userError=1;
     super(message);
+    this.userError=1;
   }
 }