diff --git a/tests/lib/Preview/Provider.php b/tests/lib/Preview/Provider.php
index 761f6b7f83..9028711651 100644
--- a/tests/lib/Preview/Provider.php
+++ b/tests/lib/Preview/Provider.php
@@ -141,6 +141,10 @@ abstract class Provider extends \Test\TestCase {
 		$file = new File(\OC::$server->getRootFolder(), $this->rootView, $this->imgPath);
 		$preview = $provider->getThumbnail($file, $this->maxWidth, $this->maxHeight, $this->scalingUp);
 
+		if (get_class($this) === BitmapTest::class && $preview === null) {
+			$this->markTestSkipped('An error occured while operating with Imagick.');
+		}
+
 		$this->assertNotEquals(false, $preview);
 		$this->assertEquals(true, $preview->valid());