diff --git a/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_ioqueue.c b/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_ioqueue.c
index 1428e1b282c4663e6363e7c09537e7b2888ea42d..6bf91de888985f2ab1d7c553b6aa62ff258aefdd 100644
--- a/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_ioqueue.c
+++ b/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_ioqueue.c
@@ -162,6 +162,8 @@ static int worker_thread(void *arg)
         rc = pj_ioqueue_poll(ioqueue, &timeout);
     }
     PJ_UNREACHED(return 0;)
+
+    return 0;
 }
 
 int udp_echo_srv_ioqueue(void)
diff --git a/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_sync.c b/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_sync.c
index ceff924389d7fa0e96f2397c46fbf07162bc6420..9b5aec652de68a18bbaf616d3d2aa66368b827b2 100644
--- a/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_sync.c
+++ b/sflphone-common/libs/pjproject/pjlib/src/pjlib-test/udp_echo_srv_sync.c
@@ -68,6 +68,8 @@ static int worker_thread(void *arg)
         }
     }
     PJ_UNREACHED(return 0;)
+
+    return 0;
 }