diff --git a/module/VuFindSearch/src/VuFindSearch/Backend/BrowZine/QueryBuilder.php b/module/VuFindSearch/src/VuFindSearch/Backend/BrowZine/QueryBuilder.php
index db0045562c39c6c84beba227510a23d4d92d2a7a..459244427f677bf9d4c8e167c08bf2eec60ee14e 100644
--- a/module/VuFindSearch/src/VuFindSearch/Backend/BrowZine/QueryBuilder.php
+++ b/module/VuFindSearch/src/VuFindSearch/Backend/BrowZine/QueryBuilder.php
@@ -56,7 +56,8 @@ class QueryBuilder
     public function build(AbstractQuery $query)
     {
         // Send back results
-        $params = new ParamBag(['query' => $this->abstractQueryToArray($query)]);
+        $q = $this->abstractQueryToArray($query);
+        $params = new ParamBag(['query' => empty($q) ? '*' : $q]);
         return $params;
     }