diff --git a/coreapi/linphone_tunnel_stubs.c b/coreapi/linphone_tunnel_stubs.c
index 8abe7a431..e19ad8247 100644
--- a/coreapi/linphone_tunnel_stubs.c
+++ b/coreapi/linphone_tunnel_stubs.c
@@ -71,6 +71,7 @@ void linphone_tunnel_set_dual_mode(LinphoneTunnel *tunnel, bool_t dual_mode_enab
 
 bool_t linphone_tunnel_get_dual_mode(const LinphoneTunnel *tunnel) {
 	ms_warning("linphone_tunnel_get_dual_mode() - stubbed, no implementation");
+	return FALSE;
 }
 
 bool_t linphone_tunnel_connected(const LinphoneTunnel *tunnel){