diff --git a/card_games/oh_heck.md b/card_games/oh_heck.md
index cdb1475..dd727aa 100755
--- a/card_games/oh_heck.md
+++ b/card_games/oh_heck.md
@@ -20,7 +20,7 @@ access quickly at [pls.cx/oh_heck](https://pls.cx/oh_heck)
 
 0. sit around table
 1. shuffle deck
-2. with `n` number of cards:
+2. with `n` number of cards, where ` 0 < n <= floor(52/m)`:
 
    a. deal `n` cards to each player
    b. take the card at the top of the deck and place it face up on the table.