diff --git a/Classes/Domain/Model/Dto/Search.php b/Classes/Domain/Model/Dto/Search.php
index 6b119ebd..7a915eb3 100644
--- a/Classes/Domain/Model/Dto/Search.php
+++ b/Classes/Domain/Model/Dto/Search.php
@@ -8,7 +8,10 @@ class Search
 {
     protected $fullText = '';
 
-    protected $category = 0;
+    /**
+     * @var int[]
+     */
+    protected $categories = [];
 
     public function getFullText(): string
     {
@@ -20,14 +23,40 @@ public function setFullText(string $fullText): void
         $this->fullText = $fullText;
     }
 
+    /**
+     * @return int
+     *
+     * @deprecated Use categories instead!
+     */
     public function getCategory(): int
     {
-        return $this->category;
+        return $this->categories[0] ?? 0;
     }
 
+    /**
+     * @param int $category
+     *
+     * @deprecated Use categories instead!
+     */
     public function setCategory(int $category): void
     {
-        $this->category = $category;
+        $this->categories = [$category];
+    }
+
+    /**
+     * @return int[]
+     */
+    public function getCategories(): array
+    {
+        return $this->categories;
+    }
+
+    /**
+     * @param int[] $categories
+     */
+    public function setCategories(array $categories): void
+    {
+        $this->categories = $categories;
     }
 
     public function isSearch(): bool
diff --git a/Classes/Domain/Repository/EventRepository.php b/Classes/Domain/Repository/EventRepository.php
index e6383a84..211fcda5 100644
--- a/Classes/Domain/Repository/EventRepository.php
+++ b/Classes/Domain/Repository/EventRepository.php
@@ -47,8 +47,12 @@ public function findBySearch(Search $search)
                 $query->like('description', '%' . $search->getFullText() . '%'),
             ]);
         }
-        if ($search->getCategory()) {
-            $constraints['categories'] = $query->contains('categories', $search->getCategory());
+        if ($search->getCategories()) {
+            $categories = [];
+            foreach ($search->getCategories() as $category) {
+                $categories[] = $query->contains('categories', $category);
+            }
+            $constraints['categories'] = $query->logicalOr($categories);
         }
         $query->matching($query->logicalAnd($constraints));
         $rows = $query->execute(true);
diff --git a/Classes/EventListener/DefaultEventSearchListener.php b/Classes/EventListener/DefaultEventSearchListener.php
index 93b8808f..2de15f91 100644
--- a/Classes/EventListener/DefaultEventSearchListener.php
+++ b/Classes/EventListener/DefaultEventSearchListener.php
@@ -6,6 +6,7 @@
 use HDNET\Calendarize\Domain\Repository\EventRepository;
 use HDNET\Calendarize\Event\IndexRepositoryFindBySearchEvent;
 use HDNET\Calendarize\Register;
+use TYPO3\CMS\Core\Utility\MathUtility;
 
 class DefaultEventSearchListener
 {
@@ -48,8 +49,14 @@ protected function getSearchDto(IndexRepositoryFindBySearchEvent $event): Search
         $customSearch = $event->getCustomSearch();
 
         $search = new Search();
-        $search->setFullText(trim((string)$customSearch['fullText'] ?? ''));
-        $search->setCategory((int)$customSearch['category'] ?? 0);
+        $search->setFullText(trim((string)($customSearch['fullText'] ?? '')));
+        if (\is_array($customSearch['categories'])) {
+            $categories = array_map('intval', $customSearch['categories']);
+            $search->setCategories($categories);
+        } elseif (MathUtility::canBeInterpretedAsInteger($customSearch['category'] ?? '')) {
+            // Fallback for previous mode
+            $search->setCategories([(int)$customSearch['category']]);
+        }
 
         return $search;
     }