diff --git a/vm/src/memory/unified.rs b/vm/src/memory/unified.rs
index be1f5040..8f4a7cc0 100644
--- a/vm/src/memory/unified.rs
+++ b/vm/src/memory/unified.rs
@@ -212,7 +212,8 @@ macro_rules! add_fixed {
                 return Err(MemoryError::MemoryOverlap);
             }
 
-            self.meta.insert(rng.clone(), Modes::$mode);
+            // Range<u32> is Copy, so cloning is unnecessary.
+            self.meta.insert(rng, Modes::$mode);
 
             let idx = self.$store.len();
             self.$map.insert(rng, idx);