diff --git a/lib/libc/uuid/uuid_is_nil.c b/lib/libc/uuid/uuid_is_nil.c
index 1db8265f4933..ee1865349dee 100644
--- a/lib/libc/uuid/uuid_is_nil.c
+++ b/lib/libc/uuid/uuid_is_nil.c
@@ -37,7 +37,7 @@
 int32_t
 uuid_is_nil(const uuid_t *u, uint32_t *status)
 {
-	uint32_t *p;
+	const uint32_t *p;
 
 	if (status)
 		*status = uuid_s_ok;
@@ -49,6 +49,6 @@ uuid_is_nil(const uuid_t *u, uint32_t *status)
 	 * Pick the largest type that has equivalent alignment constraints
 	 * as an UUID and use it to test if the UUID consists of all zeroes.
 	 */
-	p = (uint32_t*)u;
+	p = (const uint32_t*)u;
 	return ((p[0] == 0 && p[1] == 0 && p[2] == 0 && p[3] == 0) ? 1 : 0);
 }