diff --git a/src/GraphShape/Algorithms/Layout/Simple/Hierarchical/SugiyamaLayoutAlgorithm.SliceAssignments.cs b/src/GraphShape/Algorithms/Layout/Simple/Hierarchical/SugiyamaLayoutAlgorithm.SliceAssignments.cs
index 276c43f..7cf66db 100644
--- a/src/GraphShape/Algorithms/Layout/Simple/Hierarchical/SugiyamaLayoutAlgorithm.SliceAssignments.cs
+++ b/src/GraphShape/Algorithms/Layout/Simple/Hierarchical/SugiyamaLayoutAlgorithm.SliceAssignments.cs
@@ -307,7 +307,6 @@ private void CalculateLayerSizesAndPositions()
 
             double layerDistance = Parameters.LayerGap;
             _layerPositions = new double[_layers.Count];
-            _layerPositions[0] = 0;
             for (int i = 1; i < _layers.Count; ++i)
             {
                 _layerPositions[i] = _layerPositions[i - 1] + _layerSizes[i - 1] + layerDistance;
@@ -594,4 +593,4 @@ private void CalculateRealPositions()
             }
         }
     }
-}
\ No newline at end of file
+}