diff --git a/clients/hypersim/model/ucm_node.def b/clients/hypersim/model/ucm_node.def
index a3d2dcfd6..95b994383 100644
--- a/clients/hypersim/model/ucm_node.def
+++ b/clients/hypersim/model/ucm_node.def
@@ -723,7 +723,7 @@ struct sockaddr_in rec_addr;
 	struct msg *msg = (struct msg *) buf;
 
 	struct timespec now;
-	unsigned int sequence = 0;
+	static unsigned sequence;
 
 	if (switchs == 1) {
 		clock_gettime(CLOCK_REALTIME, &now);