diff --git a/taglib/toolkit/tfilestream.cpp b/taglib/toolkit/tfilestream.cpp
index d68dbc82..52252023 100644
--- a/taglib/toolkit/tfilestream.cpp
+++ b/taglib/toolkit/tfilestream.cpp
@@ -84,7 +84,7 @@ namespace {
 
   // For non-Windows 
 
-  const FILE *InvalidFile = 0;
+  FILE *const InvalidFile = 0;
 
   struct FileNameHandle : public std::string
   {