diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index f0f4465..3b5aadb 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2271,9 +2271,9 @@
                                    const unsigned char *end, size_t *out_len );
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-int mbedtls_ssl_parse_servername_ext( mbedtls_ssl_context *ssl,
-                                      const unsigned char *buf,
-                                      const unsigned char *end );
+int mbedtls_ssl_parse_server_name_ext( mbedtls_ssl_context *ssl,
+                                       const unsigned char *buf,
+                                       const unsigned char *end );
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
 #endif /* ssl_misc.h */