diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 0c92bdc..fb9aad1 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -329,3 +329,13 @@ display_variant.plugin:
     uuid:
       type: string
       label: 'UUID'
+
+base_entity_reference_field_settings:
+  type: mapping
+  mapping:
+    target_type:
+      type: string
+      label: 'Type of item to reference'
+    target_bundle:
+      type: string
+      label: 'Bundle of item to reference'
diff --git a/core/modules/system/config/schema/system.schema.yml b/core/modules/system/config/schema/system.schema.yml
index 166227a..5375524 100644
--- a/core/modules/system/config/schema/system.schema.yml
+++ b/core/modules/system/config/schema/system.schema.yml
@@ -391,13 +391,3 @@ condition.plugin.request_path:
   mapping:
     pages:
       type: string
-
-base_entity_reference_field_settings:
-  type: mapping
-  mapping:
-    target_type:
-      type: string
-      label: 'Type of item to reference'
-    target_bundle:
-      type: string
-      label: 'Bundle of item to reference'