diff --git a/src/client/NP/NPFileException.cs b/src/client/NP/NPFileException.cs
index f19ce75..c8c66f9 100644
--- a/src/client/NP/NPFileException.cs
+++ b/src/client/NP/NPFileException.cs
@@ -2,7 +2,7 @@
 
 namespace NPSharp.NP
 {
-    internal class NpFileException : Exception
+    public class NpFileException : Exception
     {
         internal NpFileException(int error)
             : base(error == 1 ? @"File not found on NP server" : @"Internal error on NP server")