diff --git a/src/ifc5d/ifc5d/IFC4QtoBaseQuantitiesBlender.json b/src/ifc5d/ifc5d/IFC4QtoBaseQuantitiesBlender.json
index 3dcfd882ac..ac0acbe67e 100644
--- a/src/ifc5d/ifc5d/IFC4QtoBaseQuantitiesBlender.json
+++ b/src/ifc5d/ifc5d/IFC4QtoBaseQuantitiesBlender.json
@@ -611,7 +611,7 @@
                     "GrossVolume": "get_gross_volume",
                     "GrossWeight": "get_gross_weight",
                     "Height": "get_height",
-                    "Length": "get_length",
+                    "Length": "get_x",
                     "NetFootprintArea": "get_net_footprint_area",
                     "NetSideArea": "get_net_side_area",
                     "NetVolume": "get_net_volume",
diff --git a/src/ifc5d/ifc5d/qto.py b/src/ifc5d/ifc5d/qto.py
index 417a2efee5..1c99cccc74 100644
--- a/src/ifc5d/ifc5d/qto.py
+++ b/src/ifc5d/ifc5d/qto.py
@@ -336,6 +336,7 @@ class Blender:
         "get_gross_perimeter": Function("IfcLengthMeasure", "Gross Perimeter", ""),
         "get_height": Function("IfcLengthMeasure", "Height", ""),
         "get_length": Function("IfcLengthMeasure", "Length", ""),
+        "get_x": Function("IfcLengthMeasure", "Length", ""),
         "get_opening_depth": Function("IfcLengthMeasure", "Opening Depth", ""),
         "get_opening_height": Function("IfcLengthMeasure", "Opening Height", ""),
         "get_rectangular_perimeter": Function("IfcLengthMeasure", "Rectangular Perimeter", ""),