diff --git a/src/Relations/Joiner.php b/src/Relations/Joiner.php
index 2363aab..4a7b0fe 100644
--- a/src/Relations/Joiner.php
+++ b/src/Relations/Joiner.php
@@ -194,7 +194,7 @@ protected function getJoinKeys(Relation $relation)
         }
 
         if ($relation instanceof BelongsTo) {
-            return [$relation->getQualifiedForeignKey(), $relation->getQualifiedOwnerKeyName()];
+            return [$relation->getQualifiedForeignKeyName(), $relation->getQualifiedOwnerKeyName()];
         }
 
         if ($relation instanceof BelongsToMany) {