diff --git a/protocol/attestation_androidkey.go b/protocol/attestation_androidkey.go
index b8551ca8..95c9e83d 100644
--- a/protocol/attestation_androidkey.go
+++ b/protocol/attestation_androidkey.go
@@ -111,7 +111,7 @@ func verifyAndroidKeyFormat(att AttestationObject, clientDataHash []byte) (strin
 	}
 
 	// Verify that the attestationChallenge field in the attestation certificate extension data is identical to clientDataHash.
-	if 0 != bytes.Compare(decoded.AttestationChallenge, clientDataHash) {
+	if !bytes.Equal(decoded.AttestationChallenge, clientDataHash) {
 		return "", nil, ErrAttestationFormat.WithDetails("Attestation challenge not equal to clientDataHash")
 	}