diff --git a/core/modules/entity_reference/config/schema/entity_reference.schema.yml b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
new file mode 100644
index 0000000..2f992ab
--- /dev/null
+++ b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
@@ -0,0 +1,48 @@
+# Schema for the configuration files of the Entity Reference module.
+
+field.entity_reference.settings:
+  type: mapping
+  label: 'Settings'
+  mapping:
+    target_type:
+      type: string
+      label: 'Type of item to reference'
+
+field.entity_reference.instance_settings:
+  type: mapping
+  label: 'Entity reference settings'
+  mapping:
+    handler:
+      type: string
+      label: 'Reference method'
+    handler_settings:
+      type: mapping
+      label: 'Reference method settings'
+      mapping:
+        target_bundles:
+          type: sequence
+          label: 'types'
+          sequence:
+            - type: string
+              label: 'Type'
+        sort:
+          type: mapping
+          label: 'Sort settings'
+          mapping:
+            field:
+              type: string
+              label: 'Sort by'
+            direction:
+              type: string
+              label: 'Sort direction'
+
+field.entity_reference.value:
+  type: sequence
+  label: 'Default value'
+  sequence:
+    - type: mapping
+      label: 'Default'
+      mapping:
+        target_id:
+          type: integer
+          label: 'Value'