diff --git a/dotnet/runtime/Metamodel/SharedTable.cs b/dotnet/runtime/Metamodel/SharedTable.cs
index 4ed2d32..4d11c69 100644
--- a/dotnet/runtime/Metamodel/SharedTable.cs
+++ b/dotnet/runtime/Metamodel/SharedTable.cs
@@ -87,7 +87,7 @@ public sealed class SharedTable
         /// is deserialized. Thus never, ever serialize this ID anywhere; it's
         /// for strictly for per-run scoped caches _only_. You have been warned.
         /// </summary>
-        public long TypeCacheID = Interlocked.Increment(ref TypeIDSource);
+        public long TypeCacheID = Interlocked.Increment(ref TypeCacheIDSource);
 
         /// <summary>
         /// Source of type IDs. The lowest one is 4. This is to make the lower