diff --git a/lib/connector/sabre/locks.php b/lib/connector/sabre/locks.php
index cbc495dec1..e057b05994 100644
--- a/lib/connector/sabre/locks.php
+++ b/lib/connector/sabre/locks.php
@@ -178,7 +178,7 @@ class OC_Connector_Sabre_Locks extends Sabre_DAV_Locks_Backend_Abstract {
 		$sql = 'DELETE FROM `*PREFIX*locks` WHERE `userid` = ? AND `uri` = ? AND `token` = ?';
 		$result = OC_DB::executeAudited( $sql, array(OC_User::getUser(), $uri, $lockInfo->token));
 
-		return $result->numRows() === 1;
+		return $result === 1;
 
 	}
 
diff --git a/lib/vcategories.php b/lib/vcategories.php
index 7bac6e7d4e..8403695835 100644
--- a/lib/vcategories.php
+++ b/lib/vcategories.php
@@ -125,7 +125,7 @@ class OC_VCategories {
 				OC_Log::write('core', __METHOD__. 'DB error: ' . OC_DB::getErrorMessage($result), OC_Log::ERROR);
 				return false;
 			}
-			return ($result->numRows() == 0);
+			return ($result->numRows() === 0);
 		} catch(Exception $e) {
 			OCP\Util::writeLog('core', __METHOD__.', exception: '.$e->getMessage(),
 				OCP\Util::ERROR);