diff --git a/src/Illuminate/Database/Eloquent/Relations/Concerns/CanBeOneOfMany.php b/src/Illuminate/Database/Eloquent/Relations/Concerns/CanBeOneOfMany.php
index 71fa6bde3178..6ea802bace1b 100644
--- a/src/Illuminate/Database/Eloquent/Relations/Concerns/CanBeOneOfMany.php
+++ b/src/Illuminate/Database/Eloquent/Relations/Concerns/CanBeOneOfMany.php
@@ -137,7 +137,7 @@ public function latestOfMany($column = 'id', $relation = null)
     {
         return $this->ofMany(collect(Arr::wrap($column))->mapWithKeys(function ($column) {
             return [$column => 'MAX'];
-        })->all(), 'MAX', $relation ?: $this->guessRelationship());
+        })->all(), 'MAX', $relation);
     }
 
     /**
@@ -152,7 +152,7 @@ public function oldestOfMany($column = 'id', $relation = null)
     {
         return $this->ofMany(collect(Arr::wrap($column))->mapWithKeys(function ($column) {
             return [$column => 'MIN'];
-        })->all(), 'MIN', $relation ?: $this->guessRelationship());
+        })->all(), 'MIN', $relation);
     }
 
     /**