diff --git a/GBase/DataHandling/XmlDataHandler.cs b/GBase/DataHandling/XmlDataHandler.cs
index d8d76bc..6c79de3 100644
--- a/GBase/DataHandling/XmlDataHandler.cs
+++ b/GBase/DataHandling/XmlDataHandler.cs
@@ -122,8 +122,14 @@ namespace GBase.DataHandling
             if (value == null)
                 return;
 
+            string valueString;
+            if (typeof(TProperty) != typeof(string) && value is IEnumerable enumerable)
+                valueString = enumerable.ToGBaseString();
+            else
+                valueString = value.ToString();
+
             await _cache.TryRemoveValue<T, TProperty>(propertyName, value);
-            await _xmlDataWriter.Remove<T, TProperty>(propertyName, value.ToString());
+            await _xmlDataWriter.Remove<T, TProperty>(propertyName, valueString);
         }
 
         /// <summary>
diff --git a/Test.GBase/DataHandling/XmlDataHandlerTest.cs b/Test.GBase/DataHandling/XmlDataHandlerTest.cs
index 89881e7..62782f2 100644
--- a/Test.GBase/DataHandling/XmlDataHandlerTest.cs
+++ b/Test.GBase/DataHandling/XmlDataHandlerTest.cs
@@ -238,7 +238,7 @@ namespace Test.GBase.DataHandling
             await xmlDataHandler.RemoveValue<XmlDataHandlerTest, List<string>>("property", stringList);
 
             xmlDataHandlerCacheMock.Verify(c => c.TryRemoveValue<XmlDataHandlerTest, List<string>>("property", stringList), Times.Once);
-            xmlDataWriterMock.Verify(w => w.Remove<XmlDataHandlerTest, List<string>>("property", $"{stringList[0]}, {stringList[1]}, {stringList[2]}"), Times.Once);
+            xmlDataWriterMock.Verify(w => w.Remove<XmlDataHandlerTest, List<string>>("property", $"{stringList[0]},{stringList[1]},{stringList[2]}"), Times.Once);
         }
 
         [Test]