diff --git a/src/ifcgeom/IfcGeomShapes.cpp b/src/ifcgeom/IfcGeomShapes.cpp
index c4ba25ce9b..a8b777bed5 100644
--- a/src/ifcgeom/IfcGeomShapes.cpp
+++ b/src/ifcgeom/IfcGeomShapes.cpp
@@ -1113,9 +1113,9 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcCylindricalSurface* l, TopoDS_
 	
 	// IfcElementarySurface.Position has unit scale factor
 #if OCC_VERSION_HEX < 0x60502
-	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius())).Face().Moved(trsf);
+	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius() * getValue(GV_LENGTH_UNIT))).Face().Moved(trsf);
 #else
-	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius()), getValue(GV_PRECISION)).Face().Moved(trsf);
+	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius() * getValue(GV_LENGTH_UNIT)), getValue(GV_PRECISION)).Face().Moved(trsf);
 #endif
 	return true;
 }