diff --git a/library/x509.c b/library/x509.c
index cee854c..ee7a2b2 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -1489,7 +1489,7 @@
                 MBEDTLS_X509_SAFE_SNPRINTF;
 
                 if (MBEDTLS_OID_CMP(MBEDTLS_OID_ON_HW_MODULE_NAME,
-                                    &other_name->value.hardware_module_name.oid) != 0) {
+                                    &other_name->type_id) == 0) {
                     ret = mbedtls_snprintf(p, n, "\n%s        hardware module name :", prefix);
                     MBEDTLS_X509_SAFE_SNPRINTF;
                     ret =