diff --git a/lib/private/files/storage/mappedlocal.php b/lib/private/files/storage/mappedlocal.php
index 1b26e3ac0f9..d749e0e9d54 100644
--- a/lib/private/files/storage/mappedlocal.php
+++ b/lib/private/files/storage/mappedlocal.php
@@ -352,6 +352,13 @@ class MappedLocal extends \OC\Files\Storage\Common {
 		return $this->mapper->logicToPhysical($fullPath, true);
 	}
 
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isLocal() {
+		return true;
+	}
+
 	/**
 	 * @param string $path
 	 * @return string