diff --git a/NetTopologySuite.IO.SqlServer2008/MsSql2008GeographyWriter.cs b/NetTopologySuite.IO.SqlServer2008/MsSql2008GeographyWriter.cs
index a55fda8..b95c86c 100644
--- a/NetTopologySuite.IO.SqlServer2008/MsSql2008GeographyWriter.cs
+++ b/NetTopologySuite.IO.SqlServer2008/MsSql2008GeographyWriter.cs
@@ -125,7 +125,7 @@ private void AddPolygon(SqlGeographyBuilder builder, IGeometry geometry)
 
             AddCoordinates(builder, TryReverseRing((ILinearRing)polygon.ExteriorRing, true).CoordinateSequence);
 
-            Array.ForEach(polygon.InteriorRings, ring => AddCoordinates(builder, TryReverseRing((ILinearRing)polygon.ExteriorRing, false).CoordinateSequence));
+            Array.ForEach(polygon.InteriorRings, ring => AddCoordinates(builder, TryReverseRing((ILinearRing)ring, false).CoordinateSequence));
 			builder.EndGeography();
 		}