diff --git a/src/test.rs b/src/test.rs
index 0cb73dcd..a26417a7 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -847,7 +847,7 @@ fn test_rand_core() {
     let mut seeded = crate::Rng::from_seed(*b"0123456789abcdefghijklmnopqrstuv");
     let mut buf = [0u8; 63];
     seeded.fill_bytes(&mut buf);
-    // Verified using: printf 0123456789abcdefghijklmnopqrstuv | b3sum -l 76
+    // Verified using: printf 0123456789abcdefghijklmnopqrstuv | b3sum -l 76 --keyed <(true)
     assert_eq!(
         &buf,
         b"\