Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Update/ProjectUpdateExtensions.cs
===================================================================
diff -u -r75a219c391144ca71a684f46e96e5d3f0c17f170 -r56fcaa1987b9a7235553ff43a0a4f36b46efdb2e
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Update/ProjectUpdateExtensions.cs	(.../ProjectUpdateExtensions.cs)	(revision 75a219c391144ca71a684f46e96e5d3f0c17f170)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Update/ProjectUpdateExtensions.cs	(.../ProjectUpdateExtensions.cs)	(revision 56fcaa1987b9a7235553ff43a0a4f36b46efdb2e)
@@ -41,6 +41,11 @@
         /// <param name="project">The project to update the database entity for.</param>
         /// <param name="collector">The object keeping track of update operations.</param>
         /// <param name="context">The context to obtain the existing entity from.</param>
+        /// <exception cref="ArgumentNullException">Thrown when either:
+        /// <list type="bullet">
+        /// <item><paramref name="collector"/> is <c>null</c></item>
+        /// <item><paramref name="context"/> is <c>null</c></item>
+        /// </list></exception>
         public static void Update(this Project project, UpdateConversionCollector collector, IRingtoetsEntities context)
         {
             if (context == null)