diff --git a/src/components/ha-cards.js b/src/components/ha-cards.js
index 8a454756da..0a89dc750f 100644
--- a/src/components/ha-cards.js
+++ b/src/components/ha-cards.js
@@ -251,7 +251,10 @@ class HaCards extends PolymerElement {
       entities.forEach((entity) => {
         const domain = computeStateDomain(entity);
 
-        if (domain in DOMAINS_WITH_CARD) {
+        if (
+          domain in DOMAINS_WITH_CARD &&
+          !entity.attributes.custom_ui_state_card
+        ) {
           owncard.push(entity);
           size += DOMAINS_WITH_CARD[domain];
         } else {