1 files changed, 1 insertions, 2 deletions
diff --git a/tls.go b/tls.go
index d4452f2..b30a91b 100644
--- a/tls.go
+++ b/tls.go
@@ -99,8 +99,7 @@ func createIdentity(state *BrowserState, name string) (*tls.Config, error) {
 		}
 	}
 
-	snLimit := new(big.Int).Lsh(big.NewInt(1), 128)
-	serialNumber, err := rand.Int(rand.Reader, snLimit)
+	serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
 	if err != nil {
 		return nil, err
 	}