diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index a07c723..01ede40 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1935,7 +1935,7 @@
 *
 */
 void mbedtls_ssl_tls13_conf_early_data( mbedtls_ssl_config *conf,
-                                  int early_data_enabled );
+                                        int early_data_enabled );
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_EARLY_DATA */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)