diff --git a/sway-lib-core/src/codec.sw b/sway-lib-core/src/codec.sw
index 59a70ece81c..2b2489b16e8 100644
--- a/sway-lib-core/src/codec.sw
+++ b/sway-lib-core/src/codec.sw
@@ -697,17 +697,6 @@ impl AbiEncode for raw_slice {
     }
 }
 
-impl<T> AbiEncode for &__slice[T]
-where
-    T: AbiEncode,
-{
-    fn abi_encode(self, buffer: Buffer) -> Buffer {
-        Buffer {
-            buffer: __encode_buffer_append(buffer.buffer, self),
-        }
-    }
-}
-
 impl<T> AbiEncode for [T; 0]
 where
     T: AbiEncode,