diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs
index 62ff3181ef8..3e25418f14f 100644
--- a/library/core/src/macros/mod.rs
+++ b/library/core/src/macros/mod.rs
@@ -115,7 +115,7 @@ macro_rules! assert_ne {
 /// Asserts that an expression matches the provided pattern.
 ///
 /// This macro is generally preferable to `assert!(matches!(value, pattern))`, because it can print
-/// the debug representation, of the actual value shape that did not meet expectation. In contrast
+/// the debug representation, of the actual value shape that did not meet expectation. In contrast,
 /// using [`assert!`] will only print that the expectation was not met, but not why.
 ///
 /// The pattern syntax is exactly the same as found in a match arm and the `matches!` macro. The
@@ -383,7 +383,7 @@ macro_rules! debug_assert_ne {
 ///
 /// This macro is generally preferable to `debug_assert!(matches!(value, pattern))`, because it can
 /// print the debug representation, of the actual value shape that did not meet expectation. In
-/// contrast using [`debug_assert!`] will only print that the expectation was not met, but not why.
+/// contrast, using [`debug_assert!`] will only print that the expectation was not met, but not why.
 ///
 /// The pattern syntax is exactly the same as found in a match arm and the `matches!` macro. The
 /// optional if guard can be used to add additional checks that must be true for the matched value,