diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 1a82dff90..5488f7819 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,9 @@
+2003-09-24  Dimitri Papadopoulos  <papadopo@users.sourceforge.net>
+
+	* include/GL/glu.h (gluErrorUnicodeStringEXT): Add function.
+	Function exists in glu32.def but is undocumented on MSDN.
+	A Google search came up with this declaration.
+
 2003-09-24  Dimitri Papadopoulos  <papadopo@users.sourceforge.net>
 
 	* include/GL/glu.h: Rewritten from scratch. Started from GLU 1.3
diff --git a/winsup/w32api/include/GL/glu.h b/winsup/w32api/include/GL/glu.h
index a42e63aee..c259d6fa9 100644
--- a/winsup/w32api/include/GL/glu.h
+++ b/winsup/w32api/include/GL/glu.h
@@ -227,6 +227,7 @@ GLAPI void APIENTRY gluEndPolygon (GLUtesselator* tess);
 GLAPI void APIENTRY gluEndSurface (GLUnurbs* nurb);
 GLAPI void APIENTRY gluEndTrim (GLUnurbs* nurb);
 GLAPI const GLubyte * APIENTRY gluErrorString (GLenum error);
+GLAPI wchar_t* APIENTRY gluErrorUnicodeStringEXT (GLenum errCode);
 GLAPI void APIENTRY gluGetNurbsProperty (GLUnurbs* nurb, GLenum property, GLfloat* data);
 GLAPI const GLubyte * APIENTRY gluGetString (GLenum name);
 GLAPI void APIENTRY gluGetTessProperty (GLUtesselator* tess, GLenum which, GLdouble* data);