diff --git a/documentation/Fl_Gl_Window.html b/documentation/Fl_Gl_Window.html
index e011f660a..2367cbcdb 100644
--- a/documentation/Fl_Gl_Window.html
+++ b/documentation/Fl_Gl_Window.html
@@ -41,7 +41,7 @@ very well for single-buffered. </P>
 <P>Please note that the FLTK drawing and clipping functions
 will not work inside an <tt>Fl_Gl_Window</tt>. All drawing
 should be done using OpenGL calls exclusively.
-Even though <tt>Fl_Gl_Widget</tt> is derived from <tt>Fl_Group</tt>, 
+Even though <tt>Fl_Gl_Window</tt> is derived from <tt>Fl_Group</tt>, 
 it is not useful to add other FLTK Widgets as children,
 unless those Widgets are modified to draw using OpenGL calls.</P>