diff --git a/core/Controller/UnifiedSearchController.php b/core/Controller/UnifiedSearchController.php
index d0dfd1bf7da90..9704850bb1f27 100644
--- a/core/Controller/UnifiedSearchController.php
+++ b/core/Controller/UnifiedSearchController.php
@@ -100,7 +100,7 @@ public function search(string $providerId,
 						   ?int $limit = null,
 						   $cursor = null,
 						   string $from = ''): DataResponse {
-		if (empty(trim($term))) {
+		if (trim($term) === "") {
 			return new DataResponse(null, Http::STATUS_BAD_REQUEST);
 		}
 		[$route, $routeParameters] = $this->getRouteInformation($from);