diff --git a/src/client/ns_turn_msg.h b/src/client/ns_turn_msg.h
index 75186b3e..219543b0 100644
--- a/src/client/ns_turn_msg.h
+++ b/src/client/ns_turn_msg.h
@@ -208,6 +208,7 @@ size_t get_hmackey_size(SHATYPE shatype);
 
 #define TURN_RANDOM_SIZE (sizeof(long))
 long turn_random(void);
+long turn_random_number(void);
 
 int stun_produce_integrity_key_str(const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, hmackey_t key,
                                    SHATYPE shatype);