diff --git a/crates/uplc/src/builtins.rs b/crates/uplc/src/builtins.rs
index 00c9d723..2801eb4b 100644
--- a/crates/uplc/src/builtins.rs
+++ b/crates/uplc/src/builtins.rs
@@ -3,7 +3,7 @@ use strum_macros::EnumString;
 
 #[repr(u8)]
 #[allow(non_camel_case_types)]
-#[derive(Debug, Clone, EnumString, PartialEq)]
+#[derive(Debug, Clone, EnumString, PartialEq, Copy)]
 #[strum(serialize_all = "camelCase")]
 pub enum DefaultFunction {
     // Integer functions
diff --git a/crates/uplc/src/flat.rs b/crates/uplc/src/flat.rs
index d4e16abf..c422c18d 100644
--- a/crates/uplc/src/flat.rs
+++ b/crates/uplc/src/flat.rs
@@ -301,7 +301,7 @@ impl<'b> Binder<'b> for DeBruijn {
 
 impl Encode for DefaultFunction {
     fn encode(&self, e: &mut Encoder) -> Result<(), en::Error> {
-        e.bits(BUILTIN_TAG_WIDTH as i64, self.clone() as u8);
+        e.bits(BUILTIN_TAG_WIDTH as i64, *self as u8);
 
         Ok(())
     }