diff --git a/clippy_lints/src/pass_by_ref_or_value.rs b/clippy_lints/src/pass_by_ref_or_value.rs
index 6a17d654ac9..c9d9e02717c 100644
--- a/clippy_lints/src/pass_by_ref_or_value.rs
+++ b/clippy_lints/src/pass_by_ref_or_value.rs
@@ -63,7 +63,7 @@ declare_clippy_lint! {
     ///
     /// **Why is this bad?** Arguments passed by value might result in an unnecessary
     /// shallow copy, taking up more space in the stack and requiring a call to
-    /// `memcpy`, which which can be expensive.
+    /// `memcpy`, which can be expensive.
     ///
     /// **Example:**
     ///