diff --git a/include/osg/State b/include/osg/State
index f28f5715a..18d6c0650 100644
--- a/include/osg/State
+++ b/include/osg/State
@@ -51,6 +51,16 @@
     #endif
 #endif
 
+#if !defined(GL_EXT_timer_query) && !defined(OSG_GL3_AVAILABLE)
+    #ifdef _WIN32
+        typedef          __int64 GLint64EXT;
+        typedef unsigned __int64 GLuint64EXT;
+    #else
+        typedef long long int GLint64EXT;
+        typedef unsigned long long int GLuint64EXT;
+    #endif
+#endif
+
 namespace osg {
 
 /** macro for use with osg::StateAttribute::apply methods for detecting and