diff --git a/src/libstd/thread/mod.rs b/src/libstd/thread/mod.rs
index 1f78b32bcf38e..188b596c67991 100644
--- a/src/libstd/thread/mod.rs
+++ b/src/libstd/thread/mod.rs
@@ -423,10 +423,10 @@ pub fn park() {
 /// the specified duration has been reached (may wake spuriously).
 ///
 /// The semantics of this function are equivalent to `park()` except that the
-/// thread will be blocked for roughly no longer than *ms*. This method
+/// thread will be blocked for roughly no longer than `ms`. This method
 /// should not be used for precise timing due to anomalies such as
 /// preemption or platform differences that may not cause the maximum
-/// amount of time waited to be precisely *ms* long.
+/// amount of time waited to be precisely `ms` long.
 ///
 /// See the module doc for more detail.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -439,10 +439,10 @@ pub fn park_timeout_ms(ms: u32) {
 /// the specified duration has been reached (may wake spuriously).
 ///
 /// The semantics of this function are equivalent to `park()` except that the
-/// thread will be blocked for roughly no longer than *dur*. This method
+/// thread will be blocked for roughly no longer than `dur`. This method
 /// should not be used for precise timing due to anomalies such as
 /// preemption or platform differences that may not cause the maximum
-/// amount of time waited to be precisely *dur* long.
+/// amount of time waited to be precisely `dur` long.
 ///
 /// See the module doc for more detail.
 ///