diff --git a/hench.mjs b/hench.mjs
index 04db693..09da92e 100644
--- a/hench.mjs
+++ b/hench.mjs
@@ -97,4 +97,8 @@ Hooks.once("init", () => {
         makeDefault: true,
         label: 'Hench Cards Sheet'
     });
+    
+    // remove other card stack types...
+    CardStacks.unregisterSheet('core', CardsHand);
+    CardStacks.unregisterSheet('core', CardsPile);
 });
\ No newline at end of file
diff --git a/module/cards/hench-cards.mjs b/module/cards/hench-cards.mjs
index 532356a..a87cb09 100644
--- a/module/cards/hench-cards.mjs
+++ b/module/cards/hench-cards.mjs
@@ -11,6 +11,13 @@ export class HenchCardsDataModel extends foundry.abstract.TypeDataModel {
 
 // Document Class
 export class HenchCards extends Cards {
+    /** @override */
+    static get TYPES() {
+        return [
+            'deck',
+        ];
+    }
+
     // Getters
     get allCards() {
         return this.cards.contents;