diff --git a/src/libstd/f32.rs b/src/libstd/f32.rs
index 8e743ace99bfb..deb9eb5b4b05c 100644
--- a/src/libstd/f32.rs
+++ b/src/libstd/f32.rs
@@ -882,7 +882,7 @@ impl f32 {
     /// Returns `max` if `self` is greater than `max`, and `min` if `self` is
     /// less than `min`. Otherwise this returns `self`.
     ///
-    /// Not that this function returns NaN if the initial value was NaN as
+    /// Note that this function returns NaN if the initial value was NaN as
     /// well.
     ///
     /// # Panics
diff --git a/src/libstd/f64.rs b/src/libstd/f64.rs
index fe64d27b1efc8..b79e550ed265e 100644
--- a/src/libstd/f64.rs
+++ b/src/libstd/f64.rs
@@ -884,7 +884,7 @@ impl f64 {
     /// Returns `max` if `self` is greater than `max`, and `min` if `self` is
     /// less than `min`. Otherwise this returns `self`.
     ///
-    /// Not that this function returns NaN if the initial value was NaN as
+    /// Note that this function returns NaN if the initial value was NaN as
     /// well.
     ///
     /// # Panics