diff --git a/src/osgPlugins/sdl/ReaderWriterSDL.cpp b/src/osgPlugins/sdl/ReaderWriterSDL.cpp
index 6e8c263c9..cae0ceec5 100644
--- a/src/osgPlugins/sdl/ReaderWriterSDL.cpp
+++ b/src/osgPlugins/sdl/ReaderWriterSDL.cpp
@@ -22,7 +22,7 @@ class ReaderWriterSDL : public osgDB::ReaderWriter
 
         virtual const char* className() const { return "SDL Device Integration plugin"; }
 
-        virtual ReadResult readObject(const std::string& file, const osgDB::ReaderWriter::Options* options =NULL) const
+        virtual ReadResult readObject(const std::string& file, const osgDB::ReaderWriter::Options* =NULL) const
         {
             if (file=="joystick.sdl")
             {