diff --git a/lib/private/Files/Mount/MountPoint.php b/lib/private/Files/Mount/MountPoint.php
index 7a5a87be35b17..bab2dc8e4bd3b 100644
--- a/lib/private/Files/Mount/MountPoint.php
+++ b/lib/private/Files/Mount/MountPoint.php
@@ -198,7 +198,7 @@ public function getNumericStorageId() {
 			if (is_null($storage)) {
 				return -1;
 			}
-			$this->numericStorageId = $storage->getStorageCache()->getNumericId();
+			$this->numericStorageId = $storage->getCache()->getNumericStorageId();
 		}
 		return $this->numericStorageId;
 	}