diff --git a/src/components/entity/state-badge.ts b/src/components/entity/state-badge.ts
index d4820d8ea673..2a453075774d 100644
--- a/src/components/entity/state-badge.ts
+++ b/src/components/entity/state-badge.ts
@@ -136,7 +136,7 @@ export class StateBadge extends LitElement {
         backgroundImage = `url(${imageUrl})`;
         this._showIcon = false;
         if (domain === "update") {
-          hostStyle.borderRadius = "0";
+          this.style.borderRadius = "0";
         }
       } else if (this.color) {
         // Externally provided overriding color wins over state color