diff --git a/src/include/lwip/altcp_tls.h b/src/include/lwip/altcp_tls.h
index b9fb31d6..2cef9cd8 100644
--- a/src/include/lwip/altcp_tls.h
+++ b/src/include/lwip/altcp_tls.h
@@ -80,13 +80,13 @@ void altcp_tls_free_config(struct altcp_tls_config *conf);
 /** @ingroup altcp_tls
  * Create new ALTCP_TLS layer
  */
-struct altcp_pcb *altcp_tls_new(struct altcp_tls_config* config, struct altcp_pcb *inner_pcb);
+struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb);
 
 /** @ingroup altcp_tls
  * Return pointer to internal TLS context so application can tweak it.
  * Real type depends on port (e.g. mbedtls)
  */
-void *altcp_tls_context (struct altcp_pcb *conn);
+void *altcp_tls_context(struct altcp_pcb *conn);
 
 #ifdef __cplusplus
 }