diff --git a/src/Xna.Framework.Content/Content/ContentTypeReaderManager.cs b/src/Xna.Framework.Content/Content/ContentTypeReaderManager.cs
index 6b38438dd8e..c2b8c940b34 100644
--- a/src/Xna.Framework.Content/Content/ContentTypeReaderManager.cs
+++ b/src/Xna.Framework.Content/Content/ContentTypeReaderManager.cs
@@ -237,7 +237,7 @@ internal static Type ResolveReaderType(string readerTypeName)
                 return readerType;
 
             resolvedReaderTypeName = readerTypeName;
-            resolvedReaderTypeName = resolvedReaderTypeName.Replace(", MonoGame.Framework", string.Format(", {0}", ", Xna.Framework.Audio"));
+            resolvedReaderTypeName = resolvedReaderTypeName.Replace(", MonoGame.Framework", string.Format(", {0}", "Xna.Framework.Audio"));
             readerType = Type.GetType(resolvedReaderTypeName);
             if (readerType != null)
                 return readerType;