diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index 5c6536a..c9ae573 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -92,24 +92,8 @@ field.image.settings:
       type: string
       label: 'Upload destination'
     default_image:
-      type: mapping
-      label: 'Default image'
-      mapping:
-        fid:
-          type: integer
-          label: 'Image'
-        alt:
-          type: label
-          label: 'Alternate text'
-        title:
-          type: label
-          label: 'Title'
-        width:
-          type: integer
-          label: 'Width'
-        height:
-          type: integer
-          label: 'Height'
+      type: field.image.default
+      label: 'Default value'
     column_groups:
       type: mapping
       label: 'Column groups'
@@ -180,28 +164,24 @@ field.image.instance_settings:
       type: boolean
       label: 'Title field required'
     default_image:
-      type: mapping
-      label: 'Default image'
-      mapping:
-        fid:
-          type: integer
-          label: 'Image'
-        alt:
-          type: label
-          label: 'Alternate text'
-        title:
-          type: label
-          label: 'Title'
-        width:
-          type: integer
-          label: 'Width'
-        height:
-          type: integer
-          label: 'Height'
-
-field.image.value:
-  type: sequence
-  label: 'Default value'
-  sequence:
-    - type: string
+      type: field.image.default
       label: 'Default value'
+
+field.image.default:
+  type: mapping
+  mapping:
+    fid:
+      type: integer
+      label: 'Image'
+    alt:
+      type: label
+      label: 'Alternate text'
+    title:
+      type: label
+      label: 'Title'
+    width:
+      type: integer
+      label: 'Width'
+    height:
+      type: integer
+      label: 'Height'