diff --git a/Cargo.toml b/Cargo.toml
index ef995d4d936..88b3ff0577a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -169,5 +169,3 @@ doc_overindented_list_items = { level = "allow", priority = 1 }
 # complexity-lints
 precedence = { level = "allow", priority = 1 }
 manual_div_ceil = { level = "allow", priority = 1 }
-# perf-lints
-cloned_ref_to_slice_refs = { level = "allow", priority = 1 }
diff --git a/src/geometry/ramer_douglas_peucker.rs b/src/geometry/ramer_douglas_peucker.rs
index ca9d53084b7..014b3b409bf 100644
--- a/src/geometry/ramer_douglas_peucker.rs
+++ b/src/geometry/ramer_douglas_peucker.rs
@@ -104,7 +104,7 @@ mod tests {
 
         assert_eq!(ramer_douglas_peucker(&[], epsilon), vec![]);
         assert_eq!(
-            ramer_douglas_peucker(&[a.clone()], epsilon),
+            ramer_douglas_peucker(std::slice::from_ref(&a), epsilon),
             vec![a.clone()]
         );
         assert_eq!(