diff --git a/README.md b/README.md
index 599228a..8004b44 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,7 @@ LP_DRAW_DATE_CLASS="date"
 LP_BALL_CONTAINER='li'
 LP_BALL_CLASS="ball ball"
 LP_DATE_INPUT_FORMAT="%B %d %Y"
+LP_DATE_PASS_FORMAT="%m/%d/%Y"
 
 # Powerball vars
 LP_POWERBALL_INCEPTION="1992"