diff --git a/jwt/token-verifier.go b/jwt/token-verifier.go
index a2af4f4..e247f12 100644
--- a/jwt/token-verifier.go
+++ b/jwt/token-verifier.go
@@ -16,7 +16,7 @@ type TokenVerifier struct {
 	secret     string
 }
 
-const DEFAULT_EXPIRATION = time.Hour * time.Duration(72)
+const DefaultExpiration = time.Hour * time.Duration(72)
 
 func NewTokenVerifier(secret string) (*TokenVerifier, error) {
 	if secret == "" {
@@ -24,7 +24,7 @@ func NewTokenVerifier(secret string) (*TokenVerifier, error) {
 	}
 
 	return &TokenVerifier{
-		Expiration: time.Hour * time.Duration(72),
+		Expiration: DefaultExpiration,
 		secret:     secret,
 	}, nil
 }