diff --git a/include/osg/GLBeginEndAdapter b/include/osg/GLBeginEndAdapter
index de67ea7f6..dad1578b5 100644
--- a/include/osg/GLBeginEndAdapter
+++ b/include/osg/GLBeginEndAdapter
@@ -18,6 +18,10 @@
 #include <osg/Array>
 #include <osg/Matrixd>
 
+#ifndef GL_TEXTURE0
+#define GL_TEXTURE0 0x84C0
+#endif
+
 namespace osg {
 
 // forward declare