diff --git a/NicBell.UCreate.Test/DocumentTypes/BaseFromPoco.cs b/NicBell.UCreate.Test/DocumentTypes/BaseFromPoco.cs
new file mode 100644
index 0000000..5e11fb6
--- /dev/null
+++ b/NicBell.UCreate.Test/DocumentTypes/BaseFromPoco.cs
@@ -0,0 +1,20 @@
+using NicBell.UCreate.Attributes;
+using NicBell.UCreate.Constants;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+
+namespace NicBell.UCreate.Test.DocumentTypes
+{
+    [DocType(Name = "BaseFromPoco")]
+    public class BaseFromPoco : Foo
+    {
+        [Property(Alias = nameof(Title), Name = "Title", TypeName = PropertyTypes.Textstring)]
+        public string Title { get; set; }
+    }
+
+    public class Foo {
+        public string Hello { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/NicBell.UCreate.Test/NicBell.UCreate.Test.csproj b/NicBell.UCreate.Test/NicBell.UCreate.Test.csproj
index f7046a7..e544701 100644
--- a/NicBell.UCreate.Test/NicBell.UCreate.Test.csproj
+++ b/NicBell.UCreate.Test/NicBell.UCreate.Test.csproj
@@ -31,6 +31,7 @@
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
     <UseGlobalApplicationHostFile />
+    <Use64BitIISExpress />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -302,6 +303,7 @@
     <Compile Include="DataTypes\BlogPostPicker.cs" />
     <Compile Include="DataTypes\Things.cs" />
     <Compile Include="DocumentTypes\Base.cs" />
+    <Compile Include="DocumentTypes\BaseFromPoco.cs" />
     <Compile Include="DocumentTypes\BlogIndex.cs" />
     <Compile Include="DocumentTypes\BlogItem.cs" />
     <Compile Include="DocumentTypes\Home.cs" />
diff --git a/NicBell.UCreate/Sync/BaseTreeContentTypeSync.cs b/NicBell.UCreate/Sync/BaseTreeContentTypeSync.cs
index 3463e55..b9c05e0 100644
--- a/NicBell.UCreate/Sync/BaseTreeContentTypeSync.cs
+++ b/NicBell.UCreate/Sync/BaseTreeContentTypeSync.cs
@@ -25,7 +25,16 @@ public abstract class BaseTreeContentTypeSync<T> : BaseContentTypeSync<T> where
         /// </summary>
         public override void SyncAll()
         {
-            var firstLevelTypes = TypesToSync.Where(x => x.BaseType == null || x.BaseType == typeof(object) || x.BaseType == typeof(PublishedContentModel));
+            // Get first level types to sync as a tree:
+            // they could be types that don't inherit from anything,
+            // inherit directly from PublishedContentModel,
+            // inherit from some other POCO that is's a content type
+            Func<Type, bool> isFirstLevelType = x => x.BaseType == null
+                || x.BaseType == typeof(object)
+                || x.BaseType == typeof(PublishedContentModel)
+                || !x.BaseType.GetCustomAttributes().Any(at => at is BaseContentTypeAttribute);
+
+            var firstLevelTypes = TypesToSync.Where(isFirstLevelType);
 
             foreach (var itemType in firstLevelTypes)
             {