diff --git a/include/polarssl/x509.h b/include/polarssl/x509.h
index ed02ad9..df382ea 100644
--- a/include/polarssl/x509.h
+++ b/include/polarssl/x509.h
@@ -329,6 +329,18 @@
 
 /** \ingroup x509_module */
 /**
+ * \brief          Parse a single DER formatted certificate and add it
+ *                 to the chained list.
+ *
+ * \param chain    points to the start of the chain
+ * \param buf      buffer holding the certificate DER data
+ * \param buflen   size of the buffer
+ *
+ * \return         0 if successful, or a specific X509 or PEM error code
+ */
+int x509parse_crt_der( x509_cert *chain, const unsigned char *buf, size_t buflen );
+
+/**
  * \brief          Parse one or more certificates and add them
  *                 to the chained list. Parses permissively. If some
  *                 certificates can be parsed, the result is the number
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8d68eb6..81c21d9 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -2115,8 +2115,8 @@
             return( POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE );
         }
 
-        ret = x509parse_crt( ssl->session_negotiate->peer_cert, ssl->in_msg + i,
-                             n );
+        ret = x509parse_crt_der( ssl->session_negotiate->peer_cert,
+                                 ssl->in_msg + i, n );
         if( ret != 0 )
         {
             SSL_DEBUG_RET( 1, " x509parse_crt", ret );