diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs
index 85ceede5b9e3a..0b8ed0cc174b4 100644
--- a/library/core/src/num/f32.rs
+++ b/library/core/src/num/f32.rs
@@ -675,7 +675,7 @@ impl f32 {
     /// Returns the maximum of the two numbers.
     ///
     /// Follows the IEEE-754 2008 semantics for maxNum, except for handling of signaling NaNs.
-    /// This matches the behavior of libm’s fmin.
+    /// This matches the behavior of libm’s fmax.
     ///
     /// ```
     /// let x = 1.0f32;
diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs
index 4049c95b130f2..5a3cd2a4b9260 100644
--- a/library/core/src/num/f64.rs
+++ b/library/core/src/num/f64.rs
@@ -691,7 +691,7 @@ impl f64 {
     /// Returns the maximum of the two numbers.
     ///
     /// Follows the IEEE-754 2008 semantics for maxNum, except for handling of signaling NaNs.
-    /// This matches the behavior of libm’s fmin.
+    /// This matches the behavior of libm’s fmax.
     ///
     /// ```
     /// let x = 1.0_f64;