diff --git a/source/include/coap_server.h b/source/include/coap_server.h
index ba32e213f87..98023a2e8b1 100644
--- a/source/include/coap_server.h
+++ b/source/include/coap_server.h
@@ -49,9 +49,9 @@ void coap_server_delete_session(int8_t service_id);
 
 int8_t coap_server_service_init(int8_t interface_id, uint16_t listen_port, uint8_t service_options);
 
-static coap_service_session_t *coap_service_search_from_list(int8_t interface_id);
+coap_service_session_t *coap_service_search_from_list(int8_t interface_id);
 
-static coap_service_session_t *coap_service_find_by_service(int8_t service_id);
+coap_service_session_t *coap_service_find_by_service(int8_t service_id);
 
 
 #endif /* COAP_SERVER_H_ */