diff --git a/source/gloperate-osg/source/OsgFboRenderStage_osg.cpp b/source/gloperate-osg/source/OsgFboRenderStage_osg.cpp
index 728fd12f..c59f86de 100644
--- a/source/gloperate-osg/source/OsgFboRenderStage_osg.cpp
+++ b/source/gloperate-osg/source/OsgFboRenderStage_osg.cpp
@@ -1,6 +1,9 @@
 
 #include <gloperate-osg/OsgFboRenderStage.h>
 
+#undef __gl_h_ // dirtiest hack imaginale
+// TODO: find a solution for GL/gl.h and glbinding/gl/gl.h
+
 #include <osgViewer/Viewer>
 #include <osgViewer/Renderer>