diff --git a/manual/configure_rockbox/playback_options.tex b/manual/configure_rockbox/playback_options.tex
index b4991f2919..ab3c724b8f 100644
--- a/manual/configure_rockbox/playback_options.tex
+++ b/manual/configure_rockbox/playback_options.tex
@@ -226,6 +226,12 @@ related to audio playback.
         set to \setting{Off}.
     }
 
+    \opt{spdif_power}{
+      \item[Optical Output. ]Enables or disables the optical S/PDIF output to 
+         allow a digital connection to a suitable external decoder.  To enable
+         optical output, set to \setting{Yes}
+    }
+
 \item[Auto-Change Directory. ]Control what Rockbox does when it reaches the end
   of a directory. If \setting{Auto-Change Directory} is set to \setting{Yes},
   Rockbox will continue to the next directory. If