Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r9a000ebe66dd82c1097d1514dadbb7ce6b41ed85
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 9a000ebe66dd82c1097d1514dadbb7ce6b41ed85)
@@ -877,7 +877,7 @@
 
         private static bool IsHeightStructuresImportEnabled(HeightStructuresContext context)
         {
-            return context.AssessmentSection.ReferenceLine != null;
+            return context.AssessmentSection.ReferenceLine.Points.Any();
         }
 
         private static FileFilterGenerator CreateHeightStructureFileFilter()