diff --git a/src/Illuminate/Database/Eloquent/Relations/Concerns/InteractsWithPivotTable.php b/src/Illuminate/Database/Eloquent/Relations/Concerns/InteractsWithPivotTable.php
index 48444a52db85..c39398e6cd36 100644
--- a/src/Illuminate/Database/Eloquent/Relations/Concerns/InteractsWithPivotTable.php
+++ b/src/Illuminate/Database/Eloquent/Relations/Concerns/InteractsWithPivotTable.php
@@ -102,7 +102,7 @@ public function sync($ids, $detaching = true)
             $detach = array_diff($current, array_keys($records));
 
             if (count($detach) > 0) {
-                $this->detach($detach);
+                $this->detach($detach, false);
 
                 $changes['detached'] = $this->castKeys($detach);
             }