diff --git a/src/ColumnsBlock/schema.js b/src/ColumnsBlock/schema.js
index bc75d50..f8982d1 100644
--- a/src/ColumnsBlock/schema.js
+++ b/src/ColumnsBlock/schema.js
@@ -1,3 +1,20 @@
+export const ColumnSchema = {
+  title: 'Column',
+  fieldsets: [
+    {
+      id: 'default',
+      title: 'Default',
+      fields: ['column_title'],
+    },
+  ],
+  properties: {
+    column_title: {
+      title: 'Column title',
+    },
+  },
+  required: [],
+};
+
 export const ColumnsBlockSchema = {
   title: 'Columns block',
   fieldsets: [
@@ -15,6 +32,7 @@ export const ColumnsBlockSchema = {
     coldata: {
       title: 'Columns',
       type: 'columns',
+      schema: ColumnSchema,
     },
   },
   required: ['title'],