diff --git a/oe_theme.theme b/oe_theme.theme
index 65cf58993..721704595 100644
--- a/oe_theme.theme
+++ b/oe_theme.theme
@@ -1248,7 +1248,7 @@ function _oe_theme_preprocess_search_input_text(array $element): array {
   // Process element attributes into an ECL input array.
   $ecl_array = [
     'id' => $element['#attributes']['id'],
-    'name' => $element['#attributes']['name'],
+    'name' => $element['#attributes']['name'] ?? '',
     'disabled' => $element['#attributes']['disabled'] ?? FALSE,
     'type' => $element['#attributes']['type'],
     'class' => $element['#attributes']['class'],