diff --git a/src/main/java/net/openhft/chronicle/hash/serialization/internal/BasicCopyingMetaBytesInterop.java b/src/main/java/net/openhft/chronicle/hash/serialization/internal/BasicCopyingMetaBytesInterop.java
index 250cd18f8..450d067a9 100644
--- a/src/main/java/net/openhft/chronicle/hash/serialization/internal/BasicCopyingMetaBytesInterop.java
+++ b/src/main/java/net/openhft/chronicle/hash/serialization/internal/BasicCopyingMetaBytesInterop.java
@@ -52,7 +52,7 @@ public abstract class BasicCopyingMetaBytesInterop<E, W> implements MetaBytesInt
 
     @Override
     public boolean startsWith(W writer, Bytes bytes, E e) {
-        return bytes.startsWith(buffer.buffer);
+        return BytesBytesInterop.INSTANCE.startsWith(bytes, buffer.buffer);
     }
 
     @Override
diff --git a/src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java b/src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java
index c1f3b0d8b..0cf1c1a86 100755
--- a/src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java
+++ b/src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java
@@ -1354,7 +1354,7 @@ class VanillaChronicleMap<K, KI, MKI extends MetaBytesInterop<K, ? super KI>,
 
         @Override
         public boolean startsWith(Void interop, Bytes bytes, Bytes value) {
-            return bytes.startsWith(value);
+            return BytesBytesInterop.INSTANCE.startsWith(bytes, value);
         }
 
         @Override