diff --git a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
index c57b9c7d9cc7..9ce0faf2af20 100755
--- a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
+++ b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
@@ -175,7 +175,7 @@ protected function getEagerModelKeys(array $models)
         // fail plus returns zero results, which should be what the developer expects.
         if (count($keys) === 0) {
             return [$this->related->getIncrementing() &&
-                    $this->related->getKeyType() === 'int' ? 0 : null];
+                    $this->related->getKeyType() === 'int' ? 0 : null, ];
         }
 
         return array_values(array_unique($keys));