Index: Ringtoets/Common/src/Ringtoets.Common.IO/HydraRing/NumericsSettingsProvider.cs
===================================================================
diff -u -r09c47b676fdd8a2a9f891f226e1c2a676a3dec08 -r94f14096f9a5565b9f961c7b7e1822ef0976a42a
--- Ringtoets/Common/src/Ringtoets.Common.IO/HydraRing/NumericsSettingsProvider.cs	(.../NumericsSettingsProvider.cs)	(revision 09c47b676fdd8a2a9f891f226e1c2a676a3dec08)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/HydraRing/NumericsSettingsProvider.cs	(.../NumericsSettingsProvider.cs)	(revision 94f14096f9a5565b9f961c7b7e1822ef0976a42a)
@@ -107,9 +107,18 @@
 
         public void Dispose()
         {
-            numericsSettingsReader.Dispose();
+            Dispose(true);
+            GC.SuppressFinalize(this);
         }
 
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                numericsSettingsReader.Dispose();
+            }
+        }
+
         private void InitializeDefaultNumericsSettings()
         {
             NumericsSetting numericsSettingForm = CreateDefaultNumericsSetting(1, 1); // Settings for a FORM calculation