diff --git a/src/components/ha-form/compute-initial-ha-form-data.ts b/src/components/ha-form/compute-initial-ha-form-data.ts
index c1d2ba5824..8844e2d9e0 100644
--- a/src/components/ha-form/compute-initial-ha-form-data.ts
+++ b/src/components/ha-form/compute-initial-ha-form-data.ts
@@ -60,7 +60,8 @@ export const computeInitialHaFormData = (
         data[field.name] = selector.number?.min ?? 0;
       } else if ("select" in selector) {
         if (selector.select?.options.length) {
-          data[field.name] = selector.select.options[0][0];
+          const val = selector.select.options[0];
+          data[field.name] = Array.isArray(val) ? val[0] : val;
         }
       } else if ("duration" in selector) {
         data[field.name] = {