diff --git a/src/BizHawk.Client.Common/movie/tasproj/StateDictionary.cs b/src/BizHawk.Client.Common/movie/tasproj/StateDictionary.cs
index 94dcf832e9..203b26c2e0 100644
--- a/src/BizHawk.Client.Common/movie/tasproj/StateDictionary.cs
+++ b/src/BizHawk.Client.Common/movie/tasproj/StateDictionary.cs
@@ -7,7 +7,7 @@ using BizHawk.Common;
 
 namespace BizHawk.Client.Common
 {
-	class TempFileStateDictionary : IDictionary<int, byte[]>, IDisposable
+	internal class TempFileStateDictionary : IDictionary<int, byte[]>, IDisposable
 	{ 
 		private Dictionary<int, Stream> _streams = new Dictionary<int, Stream>();