diff --git a/jwt.go b/jwt.go
index 3b36c98..c08d80a 100644
--- a/jwt.go
+++ b/jwt.go
@@ -172,7 +172,7 @@ type ValidationError struct {
 }
 
 // Validation error is an error type
-func (e *ValidationError) Error() string {
+func (e ValidationError) Error() string {
 	if e.err == "" {
 		return "Token is invalid"
 	}