diff --git a/tests/Unit/Search/FilteringProviderTest.php b/tests/Unit/Search/FilteringProviderTest.php
index 377ca44706..324869b764 100644
--- a/tests/Unit/Search/FilteringProviderTest.php
+++ b/tests/Unit/Search/FilteringProviderTest.php
@@ -32,7 +32,9 @@
 use OCA\Mail\Search\FilteringProvider;
 use OCP\IUser;
 use OCP\Search\IFilter;
+use OCP\Search\IFilteringProvider;
 use OCP\Search\ISearchQuery;
+use function interface_exists;
 
 /**
  * @covers \OCA\Mail\Search\FilteringProvider
@@ -44,6 +46,10 @@ class FilteringProviderTest extends TestCase {
 	protected function setUp(): void {
 		parent::setUp();
 
+		if (!interface_exists(IFilteringProvider::class)) {
+			$this->markTestSkipped('Base class missing');
+		}
+
 		$this->serviceMock = $this->createServiceMock(FilteringProvider::class);
 		$this->provider = $this->serviceMock->getService();
 	}