diff --git a/include/os/freebsd/spl/sys/random.h b/include/os/freebsd/spl/sys/random.h
index 746275e531..7583166e72 100644
--- a/include/os/freebsd/spl/sys/random.h
+++ b/include/os/freebsd/spl/sys/random.h
@@ -51,7 +51,7 @@ random_get_pseudo_bytes(uint8_t *p, size_t s)
 static inline uint32_t
 random_in_range(uint32_t range)
 {
-#if  __FreeBSD_version >= 1300108
+#if defined(_KERNEL) && __FreeBSD_version >= 1300108
 	return (prng32_bounded(range));
 #else
 	uint32_t r;
@@ -61,7 +61,7 @@ random_in_range(uint32_t range)
 	if (range == 1)
 		return (0);
 
-	(void) random_get_pseudo_bytes((void *)&r, sizeof (r));
+	(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
 
 	return (r % range);
 #endif
diff --git a/include/os/linux/spl/sys/random.h b/include/os/linux/spl/sys/random.h
index 2c446e1557..52e97e1ce0 100644
--- a/include/os/linux/spl/sys/random.h
+++ b/include/os/linux/spl/sys/random.h
@@ -46,7 +46,7 @@ random_in_range(uint32_t range)
 	if (range == 1)
 		return (0);
 
-	(void) random_get_pseudo_bytes((void *)&r, sizeof (r));
+	(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
 
 	return (r % range);
 }
diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
index d20efa02af..4d67e652ab 100644
--- a/include/sys/zfs_context.h
+++ b/include/sys/zfs_context.h
@@ -648,7 +648,7 @@ random_in_range(uint32_t range)
 	if (range == 1)
 		return (0);
 
-	(void) random_get_pseudo_bytes((void *)&r, sizeof (r));
+	(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
 
 	return (r % range);
 }