Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs
===================================================================
diff -u -rf35a1bdec32700c5cb0027d714c8a51dfc118e0d -rc0ee4bb48b50e51d1676bbffde1857f4e78ffc06
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision f35a1bdec32700c5cb0027d714c8a51dfc118e0d)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision c0ee4bb48b50e51d1676bbffde1857f4e78ffc06)
@@ -912,20 +912,23 @@
             {
                 if (dialog.ShowDialog() == DialogResult.OK)
                 {
-                    WmtsMapData selectedMapData = dialog.SelectedMapData;
-                    if (selectedMapData == null)
-                    {
-                        return;
-                    }
-
-                    assessmentSection.BackgroundMapData.MapData = selectedMapData;
-                    assessmentSection.BackgroundMapData.NotifyObservers();
-                    assessmentSection.NotifyObservers();
-                    assessmentSection.BackgroundMapData.MapData.IsVisible = true;
+                    SetSelectedMapData(assessmentSection, dialog.SelectedMapData);
                 }
             }
         }
 
+        private static void SetSelectedMapData(IAssessmentSection assessmentSection, ImageBasedMapData selectedMapData)
+        {
+            assessmentSection.BackgroundMapData.MapData = selectedMapData;
+            if (selectedMapData == null)
+            {
+                return;
+            }
+            assessmentSection.BackgroundMapData.NotifyObservers();
+            assessmentSection.NotifyObservers();
+            assessmentSection.BackgroundMapData.MapData.IsVisible = true;
+        }
+
         #endregion
 
         #region ForeshoreProfile TreeNodeInfo