diff --git a/src/osgPlugins/pov/ReaderWriterPOV.cpp b/src/osgPlugins/pov/ReaderWriterPOV.cpp
index ca1a2b224..93bedacde 100644
--- a/src/osgPlugins/pov/ReaderWriterPOV.cpp
+++ b/src/osgPlugins/pov/ReaderWriterPOV.cpp
@@ -27,7 +27,7 @@ ReaderWriterPOV::ReaderWriterPOV()
 
 static osgDB::ReaderWriter::WriteResult
 writeNodeImplementation( const Node& node, ostream& fout,
-                         const osgDB::ReaderWriter::Options* options )
+                         const osgDB::ReaderWriter::Options* /*options*/ )
 {
    // get camera on the top of scene graph
    const Camera *camera = node.asCamera();