diff --git a/error.go b/error.go
index d6a8041..a5890a6 100644
--- a/error.go
+++ b/error.go
@@ -47,7 +47,7 @@ func Join(errs ...error) (result error) {
 		if index == 0 {
 			result = err
 		} else {
-			result = fmt.Errorf("%w: %w", result, err)
+			result = fmt.Errorf("%w: %w", result, fmt.Errorf("foo"))
 			fmt.Println("1: ",result)
 			fmt.Println("2: ",err)
 		}