diff --git a/include/mbedtls/oid.h b/include/mbedtls/oid.h
index 6fbd018..3421084 100644
--- a/include/mbedtls/oid.h
+++ b/include/mbedtls/oid.h
@@ -407,8 +407,10 @@
 {
     const char *asn1;               /*!< OID ASN.1 representation       */
     size_t asn1_len;                /*!< length of asn1                 */
+#if defined(MBEDTLS_X509_INFO)
     const char *name;               /*!< official name (e.g. from RFC)  */
     const char *description;        /*!< human friendly description     */
+#endif
 } mbedtls_oid_descriptor_t;
 
 /**
@@ -550,6 +552,7 @@
 int mbedtls_oid_get_md_hmac( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_hmac );
 #endif /* MBEDTLS_MD_C */
 
+#if defined(MBEDTLS_X509_INFO)
 /**
  * \brief          Translate Extended Key Usage OID into description
  *
@@ -559,6 +562,7 @@
  * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
  */
 int mbedtls_oid_get_extended_key_usage( const mbedtls_asn1_buf *oid, const char **desc );
+#endif
 
 /**
  * \brief          Translate md_type into hash algorithm OID