Index: Ringtoets/Common/src/Ringtoets.Common.Data/Hydraulics/HydraulicBoundaryDatabase.cs
===================================================================
diff -u -r0ce2329213d6984c6992ec20319265546692a0b4 -r35b7d54a7d06c2656986b10fc3f757b36a2dfd77
--- Ringtoets/Common/src/Ringtoets.Common.Data/Hydraulics/HydraulicBoundaryDatabase.cs	(.../HydraulicBoundaryDatabase.cs)	(revision 0ce2329213d6984c6992ec20319265546692a0b4)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Hydraulics/HydraulicBoundaryDatabase.cs	(.../HydraulicBoundaryDatabase.cs)	(revision 35b7d54a7d06c2656986b10fc3f757b36a2dfd77)
@@ -31,6 +31,7 @@
     /// </summary>
     public class HydraulicBoundaryDatabase : Observable
     {
+        private bool canUsePreprocessor;
         private bool usePreprocessor;
         private string preprocessorDirectory;
 
@@ -74,10 +75,28 @@
         public List<HydraulicBoundaryLocation> Locations { get; }
 
         /// <summary>
-        /// Gets a value indicating whether the Hydra-Ring preprocessor can be used.
+        /// Gets or sets a value indicating whether the Hydra-Ring preprocessor can be used.
         /// </summary>
-        public bool CanUsePreprocessor { get; }
+        /// <remarks>When setting this property to <c>false</c>, both <see cref="UsePreprocessor"/>
+        /// and <see cref="PreprocessorDirectory"/> are reset.</remarks>
+        public bool CanUsePreprocessor
+        {
+            get
+            {
+                return canUsePreprocessor;
+            }
+            set
+            {
+                canUsePreprocessor = value;
 
+                if (!canUsePreprocessor)
+                {
+                    usePreprocessor = false;
+                    preprocessorDirectory = null;
+                }
+            }
+        }
+
         /// <summary>
         /// Gets or sets a value indicating whether the Hydra-Ring preprocessor must be used.
         /// </summary>