diff --git a/lib/ACL/ACLCacheWrapper.php b/lib/ACL/ACLCacheWrapper.php
index 4c855ed57..623b4d2e5 100644
--- a/lib/ACL/ACLCacheWrapper.php
+++ b/lib/ACL/ACLCacheWrapper.php
@@ -108,6 +108,9 @@ private function preloadEntries(array $entries): array {
 	 */
 	private function getSearchFilter(): ISearchOperator {
 		$forbiddenPaths = $this->aclManager->getForbiddenPaths($this->getNumericStorageId(), '');
+		if (count($forbiddenPaths) === 0) {
+			return new SearchBinaryOperator(ISearchBinaryOperator::OPERATOR_AND, []);
+		}
 
 		$filters = array_map(fn (string $path) => new SearchBinaryOperator(ISearchBinaryOperator::OPERATOR_NOT, [
 			new SearchComparison(ISearchComparison::COMPARE_LIKE_CASE_SENSITIVE, 'path', SearchComparison::escapeLikeParameter($path) . '/%')
diff --git a/tests/ACL/ACLCacheWrapperTest.php b/tests/ACL/ACLCacheWrapperTest.php
index 5484ef5de..fee8a68a0 100644
--- a/tests/ACL/ACLCacheWrapperTest.php
+++ b/tests/ACL/ACLCacheWrapperTest.php
@@ -128,7 +128,6 @@ public function testSearchNonRead(): void {
 		$sourceStorage->touch('bar/test2.txt', 201);
 		$sourceStorage->touch('bar/test3.txt', 202);
 		$sourceStorage->getScanner()->scan('');
-		$this->aclPermissions['bar'] = 0;
 
 		$cache = new ACLCacheWrapper($sourceStorage->getCache(), $this->aclManager, 0, false);
 
@@ -141,6 +140,16 @@ public function testSearchNonRead(): void {
 		$result = $cache->searchQuery($query);
 		$paths = array_map(fn (ICacheEntry $entry) => $entry->getPath(), $result);
 
+		$this->assertEquals([
+			'bar/test3.txt',
+			'bar/test2.txt'
+		], $paths);
+
+		$this->aclPermissions['bar'] = 0;
+
+		$result = $cache->searchQuery($query);
+		$paths = array_map(fn (ICacheEntry $entry) => $entry->getPath(), $result);
+
 		$this->assertEquals([
 			'foo/test3.txt',
 			'foo/test2.txt'