diff --git a/fbink_cmd.c b/fbink_cmd.c
index 97eb9169..6436f73f 100644
--- a/fbink_cmd.c
+++ b/fbink_cmd.c
@@ -347,6 +347,7 @@ static void
 	    "\n"
 	    "Options affecting the image's appearance:\n"
 	    "\t-a, --flatten\tIgnore the alpha channel.\n"
+	    "\t-J, --saturation\tBoost color saturation (in percent). Aimed at Kaleido panels. 32bpp only.\n"
 	    "\n"
 	    "NOTES:\n"
 	    "\tSupported image formats: JPEG, PNG, TGA, BMP, GIF & PNM\n"