diff --git a/GBase/DataHandling/Cache/XmlDataHandlerCache.cs b/GBase/DataHandling/Cache/XmlDataHandlerCache.cs
index ac122a0..43d7883 100644
--- a/GBase/DataHandling/Cache/XmlDataHandlerCache.cs
+++ b/GBase/DataHandling/Cache/XmlDataHandlerCache.cs
@@ -22,7 +22,7 @@ namespace GBase.DataHandling.Cache
         private readonly IXmlDataHandlerCacheEntryFactory _xmlDataHandlerCacheEntryFactory;
         private readonly IXmlDataHandlerCachePropertyEntryFactory _xmlDataHandlerCachePropertyEntryFactory;
 
-        private readonly List<IXmlDataHandlerCacheEntry> _cache;
+        private readonly List<IXmlDataHandlerCacheEntry> _cache; //TODO: use conditionalWeakTable?
 
         /// <summary>
         /// An interface for the <see cref="IXmlDataHandlerCache"/>