diff --git a/core/modules/views/config/schema/views.data_types.schema.yml b/core/modules/views/config/schema/views.data_types.schema.yml
index 6551684..52aebd1 100644
--- a/core/modules/views/config/schema/views.data_types.schema.yml
+++ b/core/modules/views/config/schema/views.data_types.schema.yml
@@ -197,7 +197,7 @@ views_display:
       type: sequence
       label: 'Relationships'
       sequence:
-        - type: views.relationship.[plugin_id]
+        type: views.relationship.[plugin_id]
     css_class:
       type: string
       label: 'CSS class'