diff --git a/forge-gui/res/cardsfolder/d/drowner_of_secrets.txt b/forge-gui/res/cardsfolder/d/drowner_of_secrets.txt
index 73d5f910f9b..94d90ddc09e 100644
--- a/forge-gui/res/cardsfolder/d/drowner_of_secrets.txt
+++ b/forge-gui/res/cardsfolder/d/drowner_of_secrets.txt
@@ -2,5 +2,5 @@ Name:Drowner of Secrets
 ManaCost:2 U
 Types:Creature Merfolk Wizard
 PT:1/3
-A:AB$ Mill | Cost$ tapXType<1/Merfolk> | NumCards$ 1 | ValidTgts$ Player | TgtPrompt$ Choose a player | SpellDescription$ Target player mills a card.
+A:AB$ Mill | Cost$ tapXType<1/Merfolk> | NumCards$ 1 | ValidTgts$ Player | TgtPrompt$ Choose a player | AILogic$ EndOfOppTurn | SpellDescription$ Target player mills a card.
 Oracle:Tap an untapped Merfolk you control: Target player mills a card.