diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index 3d05fd060d2b..ee2b202a726e 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -1353,7 +1353,7 @@ pub trait CheckedMul: Mul<Self, Self> {
 /// wrapping around on underflow and overflow.
 pub trait CheckedDiv: Div<Self, Self> {
     /// Divides two numbers, checking for underflow, overflow and division by zero. If any of that
-    /// happens, / `None` is returned.
+    /// happens, `None` is returned.
     ///
     /// # Example
     ///