diff --git a/extra/src/exp_unit_norm.rs b/extra/src/exp_unit_norm.rs
index 33d9d73baa..7398a607e1 100644
--- a/extra/src/exp_unit_norm.rs
+++ b/extra/src/exp_unit_norm.rs
@@ -63,18 +63,20 @@ fn ser_eun(
 ) -> TractResult<Option<Arc<RValue>>> {
     let input = ast.mapping[&node.inputs[0]].clone();
     let state = ast.mapping[&node.inputs[1]].clone();
-    Ok(Some(invocation(
-        "tract_extra_exp_unit_norm",
-        &[input, state],
-        &[
-            ("axis", numeric(op.axis)),
-            ("alpha", numeric(op.alpha)),
-            ("epsilon", numeric(op.epsilon)),
-            ("stateless", logical(op.stateless)),
-            ("complex", logical(op.complex)),
-            ("skip", numeric(op.skip)),
-        ],
-    )))
+    let mut attributes = vec![
+        ("axis", numeric(op.axis)),
+        ("alpha", numeric(op.alpha)),
+        ("stateless", logical(op.stateless)),
+        ("skip", numeric(op.skip)),
+    ];
+    if op.mean {
+        attributes.push(("scaling_factor", numeric(op.scaling_factor)));
+        Ok(Some(invocation("tract_extra_exp_mean_norm", &[input, state], &attributes)))
+    } else {
+        attributes.push(("epsilon", numeric(op.epsilon)));
+        attributes.push(("complex", numeric(op.complex)));
+        Ok(Some(invocation("tract_extra_exp_unit_norm", &[input, state], &attributes)))
+    }
 }
 
 #[derive(Clone, Debug, PartialEq)]