diff --git a/src/common.ts b/src/common.ts
index 9e3793e9..fd3c799f 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -411,7 +411,9 @@ export function refreshDynamicStateParameters(
     params.state_color || (domain === 'light' && params.state_color !== false)
       ? domain
       : undefined;
-  params.data_state = computeActiveState(state);
+  if (state) {
+    params.data_state = computeActiveState(state);
+  }
   return params;
 }