diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs
index 318bb8ee4cda2..8f3694de94884 100644
--- a/library/core/src/num/int_macros.rs
+++ b/library/core/src/num/int_macros.rs
@@ -2101,6 +2101,7 @@ macro_rules! int_impl {
         ///
         /// ```
         #[doc = concat!("assert_eq!(100", stringify!($SelfT), ".wrapping_neg(), -100);")]
+        #[doc = concat!("assert_eq!(-100", stringify!($SelfT), ".wrapping_neg(), 100);")]
         #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MIN.wrapping_neg(), ", stringify!($SelfT), "::MIN);")]
         /// ```
         #[stable(feature = "num_wrapping", since = "1.2.0")]