diff --git a/user_guide/libraries/image_lib.html b/user_guide/libraries/image_lib.html
index d3fbe27..7c950f3 100644
--- a/user_guide/libraries/image_lib.html
+++ b/user_guide/libraries/image_lib.html
@@ -451,7 +451,7 @@
 $config['wm_type'] = 'text';<br />
 $config['wm_font_path'] = './system/fonts/texb.ttf';<br />
 $config['wm_font_size']	= '16';<br />
-$config['wm_text_color'] = 'ffffff';<br />
+$config['wm_font_color'] = 'ffffff';<br />
 $config['wm_vrt_alignment']  = 'bottom';<br />
 $config['wm_hor_alignment']  = 'center';<br />
 $config['wm_padding']  = '20';<br />