diff --git a/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py b/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
index 8284d641f2..5fae2ed275 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
@@ -85,7 +85,10 @@ def add_layer(
     """
     unit_scale = ifcopenshell.util.unit.calculate_unit_scale(file)
     layers = list(layer_set.MaterialLayers or [])
-    layer = file.create_entity("IfcMaterialLayer", Material=material, LayerThickness=0.1 / unit_scale, Name=name)
+    if file.schema == "IFC2X3":
+        layer = file.create_entity("IfcMaterialLayer", Material=material, LayerThickness=0.1 / unit_scale)
+    else:
+        layer = file.create_entity("IfcMaterialLayer", Material=material, LayerThickness=0.1 / unit_scale, Name=name)
     layers.append(layer)
     layer_set.MaterialLayers = layers
     return layer