diff --git a/sys/dev/random/random_harvestq.h b/sys/dev/random/random_harvestq.h
index 421b592d924..6339ce88ea6 100644
--- a/sys/dev/random/random_harvestq.h
+++ b/sys/dev/random/random_harvestq.h
@@ -43,7 +43,9 @@ struct harvest_event {
 	uint8_t		he_source;		/* origin of the entropy */
 } __packed;
 
-void read_rate_increment(u_int);
+void	random_harvest_queue(const void *, u_int, u_int,
+	    enum random_entropy_source);
+void	read_rate_increment(u_int);
 
 #define	RANDOM_HARVESTQ_BOOT_ENTROPY_FILE	"/boot/entropy"