diff --git a/src/osgPlugins/osg/ReaderWriterOSG.cpp b/src/osgPlugins/osg/ReaderWriterOSG.cpp
index 077278e7f..cc9bfc40a 100644
--- a/src/osgPlugins/osg/ReaderWriterOSG.cpp
+++ b/src/osgPlugins/osg/ReaderWriterOSG.cpp
@@ -318,6 +318,8 @@ class OSGReaderWriter : public ReaderWriter
             Output fout(fileName.c_str());
             if (fout)
             {
+                loadWrappers();
+
                 fout.setOptions(options);
 
                 setPrecision(fout,options);