diff --git a/include/tlsport.h b/include/tlsport.h
index 4bdae9d..7ed41ba 100644
--- a/include/tlsport.h
+++ b/include/tlsport.h
@@ -39,4 +39,10 @@ int ssllib_free(void);
  */
 int tls_connect(const char *, const char *, struct tlsport *);
 
+/* gracefully shutdown TLS connection and free resources
+ * it's always freeing and closing, but in case of wrong
+ * shutdown procedure returns -1, 0 otherwise.
+ */
+int tls_close(struct tlsport *);
+
 #endif /* __TLSPORT_H__ */