diff --git a/smx509/x509.go b/smx509/x509.go
index 24ac674..ce46d57 100644
--- a/smx509/x509.go
+++ b/smx509/x509.go
@@ -741,6 +741,7 @@ func checkSignature(algo SignatureAlgorithm, signed, signature []byte, publicKey
 		if details.algo == algo {
 			hashType = details.hash
 			pubKeyAlgo = details.pubKeyAlgo
+			break
 		}
 	}