diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 75faf22..422df99 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1964,7 +1964,7 @@
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %" MBEDTLS_PRINTF_SIZET
                                         " > %" MBEDTLS_PRINTF_SIZET,
                            i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-            return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE );
+            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
         }
 
         ssl->out_msg[i    ] = (unsigned char)( n >> 16 );