diff --git a/src/BizHawk.Client.EmuHawk/tools/MultiDiskBundler/MultiDiskBundler.cs b/src/BizHawk.Client.EmuHawk/tools/MultiDiskBundler/MultiDiskBundler.cs
index a16029c246..8c52240518 100644
--- a/src/BizHawk.Client.EmuHawk/tools/MultiDiskBundler/MultiDiskBundler.cs
+++ b/src/BizHawk.Client.EmuHawk/tools/MultiDiskBundler/MultiDiskBundler.cs
@@ -74,7 +74,7 @@ namespace BizHawk.Client.EmuHawk
 			Close();
 		}
 
-		bool DoSave(out FileInfo fileInfo)
+		private bool DoSave(out FileInfo fileInfo)
 		{
 			fileInfo = null;