Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/BackgroundMapDataSelectionDialog.cs
===================================================================
diff -u -r32e66ad63b1d2ddd01a6fb7a9fe55c75a7cd276d -r0631da0684dd736f5ca061237ea606314f272366
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/BackgroundMapDataSelectionDialog.cs	(.../BackgroundMapDataSelectionDialog.cs)	(revision 32e66ad63b1d2ddd01a6fb7a9fe55c75a7cd276d)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/BackgroundMapDataSelectionDialog.cs	(.../BackgroundMapDataSelectionDialog.cs)	(revision 0631da0684dd736f5ca061237ea606314f272366)
@@ -156,7 +156,7 @@
 
         private void OnSelectButtonClick(object sender, EventArgs e)
         {
-            SelectedMapData = currentBackgroundMapDataSelectionControl?.SelectedMapData;
+            SelectedMapData = currentBackgroundMapDataSelectionControl.SelectedMapData;
             DialogResult = DialogResult.OK;
             Close();
         }