diff --git a/lib/tp.h b/lib/tp.h
index 5b07cc6..9147cc2 100644
--- a/lib/tp.h
+++ b/lib/tp.h
@@ -10,6 +10,7 @@
 	struct flist_head list;
 	tp_work_fn *fn;
 	int wait;
+	int prio;
 	pthread_cond_t cv;
 	pthread_mutex_t lock;
 	volatile int done;