1 files changed, 1 insertions, 1 deletions

diff --git a/sys/dev/random/randomdev.h b/sys/dev/random/randomdev.h
index 91c93aee0805..3f9b0f3acc74 100644
--- a/sys/dev/random/randomdev.h
+++ b/sys/dev/random/randomdev.h
@@ -68,7 +68,7 @@ struct harvest_event;
 typedef void random_alg_init_t(void *);
 typedef void random_alg_deinit_t(void *);
 typedef void random_alg_pre_read_t(void);
-typedef void random_alg_read_t(uint8_t *, u_int);
+typedef void random_alg_read_t(uint8_t *, size_t);
 typedef bool random_alg_seeded_t(void);
 typedef void random_alg_reseed_t(void);
 typedef void random_alg_eventprocessor_t(struct harvest_event *);