diff --git a/export-laravel-5-migrations.py b/export-laravel-5-migrations.py
index 4946aac..12abfb9 100644
--- a/export-laravel-5-migrations.py
+++ b/export-laravel-5-migrations.py
@@ -146,7 +146,7 @@ def create_tree(table_schema):
             table_references = []
 
             for key in tbl.foreignKeys:
-                if key.name != '' and tbl.name != key.referencedColumns[0].owner.name:
+                if key.name != '' and tbl.name != key.referencedColumns[0].owner.name and hasattr(key, 'referencedColumns'):
                     table_references.append(key.referencedColumns[0].owner.name)
 
             tree[tbl.name] = table_references