diff --git a/core/unix/linux/dap_network_monitor.h b/core/unix/linux/dap_network_monitor.h
index bc1133a926ef1ff9ec301d4b559671cfa9afed3f..98d398f35e109087e4bd043d46223ec5032d7c51 100644
--- a/core/unix/linux/dap_network_monitor.h
+++ b/core/unix/linux/dap_network_monitor.h
@@ -34,6 +34,7 @@ extern "C" {
 #include <linux/rtnetlink.h>
 
 #define MAX_IP_STR_LEN 15
+#define DAP_ADRESS_UNDEFINED (uint64_t)-1
 
 typedef enum {
     // like in rtnetlink defines