diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 68ca50c94..ad6b0d975 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-19  Danny Smith  <dannysmith@users.sourceforge.net>
+
+	* include/Gl/glu (GLU_ERROR): Define.
+	Thanks to Philip Lamb  <phil at rave dot co dot nz> 
+
 2004-02-19  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* include/Gl/glu.h: Include <stddef.h>.
diff --git a/winsup/w32api/include/GL/glu.h b/winsup/w32api/include/GL/glu.h
index 7cd81946d..40e5378a1 100644
--- a/winsup/w32api/include/GL/glu.h
+++ b/winsup/w32api/include/GL/glu.h
@@ -121,7 +121,7 @@ extern "C" {
 #define GLU_SILHOUETTE                     100013
 
 /* QuadricCallback */
-/*      GLU_ERROR */
+#define GLU_ERROR                          100103
 
 /* QuadricNormal */
 #define GLU_SMOOTH                         100000