diff --git a/libcoap-1.map b/libcoap-1.map
index 18eee976..017a9d6c 100644
--- a/libcoap-1.map
+++ b/libcoap-1.map
@@ -148,8 +148,11 @@ global:
   coap_session_delay_pdu;
   coap_session_disconnected;
   coap_session_free;
+  coap_session_get_ack_random_factor;
+  coap_session_get_ack_timeout;
   coap_session_get_app_data;
   coap_session_get_by_peer;
+  coap_session_get_max_transmit;
   coap_session_max_pdu_size;
   coap_session_reference;
   coap_session_release;
@@ -157,7 +160,10 @@ global:
   coap_session_send;
   coap_session_send_csm;
   coap_session_send_pdu;
+  coap_session_set_ack_random_factor;
+  coap_session_set_ack_timeout;
   coap_session_set_app_data;
+  coap_session_set_max_retransmit;
   coap_session_set_mtu;
   coap_session_str;
   coap_session_write;
diff --git a/libcoap-1.sym b/libcoap-1.sym
index 1ad76f30..42ce6232 100644
--- a/libcoap-1.sym
+++ b/libcoap-1.sym
@@ -146,8 +146,11 @@ coap_session_connected
 coap_session_delay_pdu
 coap_session_disconnected
 coap_session_free
+coap_session_get_ack_random_factor
+coap_session_get_ack_timeout
 coap_session_get_app_data
 coap_session_get_by_peer
+coap_session_get_max_transmit
 coap_session_max_pdu_size
 coap_session_reference
 coap_session_release
@@ -155,7 +158,10 @@ coap_session_reset
 coap_session_send
 coap_session_send_csm
 coap_session_send_pdu
+coap_session_set_ack_random_factor
+coap_session_set_ack_timeout
 coap_session_set_app_data
+coap_session_set_max_retransmit
 coap_session_set_mtu
 coap_session_str
 coap_session_write