diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c
index 1c57b631031a..e3605ed1c459 100644
--- a/drivers/slimbus/messaging.c
+++ b/drivers/slimbus/messaging.c
@@ -246,6 +246,7 @@ static void slim_fill_msg(struct slim_val_inf *msg, u32 addr,
 	msg->num_bytes = count;
 	msg->rbuf = rbuf;
 	msg->wbuf = wbuf;
+	msg->comp = NULL;
 }
 
 /**