diff --git a/src/Formplot/FileFormat/FormplotConverter.cs b/src/Formplot/FileFormat/FormplotConverter.cs
index e220f72..6a3329b 100644
--- a/src/Formplot/FileFormat/FormplotConverter.cs
+++ b/src/Formplot/FileFormat/FormplotConverter.cs
@@ -366,7 +366,9 @@ private static CurveProfilePlot ConvertToCurveProfile( CylindricityPlot source )
 					var y = Math.Sin( point.Angle ) * source.Actual.Radius;
 
 					var curvePoint = new CurvePoint(
-						new Vector( x, y, point.Height * source.Actual.Height ),
+						segment.SegmentType == SegmentTypes.Axis
+							? new Vector( 0, 0, point.Height * source.Actual.Height )
+							: new Vector( x, y, point.Height * source.Actual.Height ),
 						new Vector( x, y ).Normalized(),
 						point.Deviation );