diff --git a/src/osgPlugins/osg/Matrix.h b/src/osgPlugins/osg/Matrix.h
new file mode 100644
index 000000000..25afdbb0d
--- /dev/null
+++ b/src/osgPlugins/osg/Matrix.h
@@ -0,0 +1,13 @@
+#ifndef DOTOSG_MATRIX
+#define DOTOSG_MATRIX
+
+#include <osg/Matrix>
+
+#include <osgDB/Input>
+#include <osgDB/Output>
+
+extern bool readMatrix(osg::Matrix& matrix, osgDB::Input& fr);
+
+extern bool writeMatrix(const osg::Matrix& matrix, osgDB::Output& fw);
+
+#endif