diff --git a/src/main/java/forge/card/ability/effects/ManaEffect.java b/src/main/java/forge/card/ability/effects/ManaEffect.java
index af61613d68f..0f5e247b0ff 100644
--- a/src/main/java/forge/card/ability/effects/ManaEffect.java
+++ b/src/main/java/forge/card/ability/effects/ManaEffect.java
@@ -179,7 +179,7 @@ public class ManaEffect extends SpellAbilityEffect {
         // convert these to SubAbilities when appropriate
         if (sa.hasParam("Stuck")) {
             sa.setUndoable(false);
-            card.addExtrinsicKeyword("This card doesn't untap during your next untap step.");
+            card.addHiddenExtrinsicKeyword("This card doesn't untap during your next untap step.");
         }
 
         final String deplete = sa.getParam("Deplete");
diff --git a/src/main/java/forge/game/zone/MagicStack.java b/src/main/java/forge/game/zone/MagicStack.java
index b5a853063cf..f78221edb71 100644
--- a/src/main/java/forge/game/zone/MagicStack.java
+++ b/src/main/java/forge/game/zone/MagicStack.java
@@ -167,7 +167,7 @@ public class MagicStack extends MyObservable {
         if ((ability.getRestrictions().getActivationNumberSacrifice() != -1)
                 && (ability.getRestrictions().getNumberTurnActivations() >= ability.getRestrictions()
                         .getActivationNumberSacrifice())) {
-            ability.getSourceCard().addExtrinsicKeyword("At the beginning of the end step, sacrifice CARDNAME.");
+            ability.getSourceCard().addHiddenExtrinsicKeyword("At the beginning of the end step, sacrifice CARDNAME.");
         }
 
         // if the ability is a spell, but not a copied spell and its not already