diff --git a/src/ifcgeom/IfcGeomFaces.cpp b/src/ifcgeom/IfcGeomFaces.cpp
index 356627ae31..14a6d6fb32 100644
--- a/src/ifcgeom/IfcGeomFaces.cpp
+++ b/src/ifcgeom/IfcGeomFaces.cpp
@@ -659,7 +659,7 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcIShapeProfileDef* l, TopoDS_Sh
 
 	double coords[24] = {-x1,-y, x1,-y, x1,-y+dy1, d1,-y+dy1, d1,y-dy2, x2,y-dy2, x2,y, -x2,y, -x2,y-dy2, -d1,y-dy2, -d1,-y+dy1, -x1,-y+dy1};
 	int fillets[4] = {3,4,9,10};
-	double radii[4] = {f1,f1,f2,f2};
+	double radii[4] = {f1,f2,f2,f1};
 	return profile_helper(12,coords,(doFillet1||doFillet2) ? 4 : 0,fillets,radii,trsf2d,face);
 }