diff --git a/src/models/schema.js b/src/models/schema.js
index 9d7d3abef..e81e38626 100644
--- a/src/models/schema.js
+++ b/src/models/schema.js
@@ -1,102 +1,10 @@
 
 import React from 'react'
-import includes from 'lodash/includes'
 import isReactComponent from '../utils/is-react-component'
 import typeOf from 'type-of'
 import memoize from '../utils/memoize'
 import { Record } from 'immutable'
 
-/**
- * Checks that the schema can perform, ordered by performance.
- *
- * @type {Object}
- */
-
-const CHECKS = {
-
-  kind(object, value) {
-    if (object.kind != value) return object.kind
-  },
-
-  type(object, value) {
-    if (object.type != value) return object.type
-  },
-
-  isVoid(object, value) {
-    if (object.isVoid != value) return object.isVoid
-  },
-
-  minChildren(object, value) {
-    if (object.nodes.size < value) return object.nodes.size
-  },
-
-  maxChildren(object, value) {
-    if (object.nodes.size > value) return object.nodes.size
-  },
-
-  kinds(object, value) {
-    if (!includes(value, object.kind)) return object.kind
-  },
-
-  types(object, value) {
-    if (!includes(value, object.type)) return object.type
-  },
-
-  minLength(object, value) {
-    const { length } = object
-    if (length < value) return length
-  },
-
-  maxLength(object, value) {
-    const { length } = object
-    if (length > value) return length
-  },
-
-  text(object, value) {
-    const { text } = object
-    switch (typeOf(value)) {
-      case 'function': if (value(text)) return text
-      case 'regexp': if (!text.match(value)) return text
-      default: if (text != value) return text
-    }
-  },
-
-  anyOf(object, value) {
-    const { nodes } = object
-    if (!nodes) return
-    const invalids = nodes.filterNot((child) => {
-      return value.some(match => match(child))
-    })
-
-    if (invalids.size) return invalids
-  },
-
-  noneOf(object, value) {
-    const { nodes } = object
-    if (!nodes) return
-    const invalids = nodes.filterNot((child) => {
-      return value.every(match => !match(child))
-    })
-
-    if (invalids.size) return invalids
-  },
-
-  exactlyOf(object, value) {
-    const { nodes } = object
-    if (!nodes) return
-    if (nodes.size != value.length) return nodes
-
-    const invalids = nodes.filterNot((child, i) => {
-      const match = value[i]
-      if (!match) return false
-      return match(child)
-    })
-
-    if (invalids.size) return invalids
-  },
-
-}
-
 /**
  * Default properties.
  *
@@ -137,6 +45,15 @@ class Schema extends new Record(DEFAULTS) {
     return 'schema'
   }
 
+  /**
+   * Return true if one rule can normalize the document
+   */
+
+  get isNormalization() {
+    const { rules } = this
+    return rules.some(rule => rule.validate)
+  }
+
   /**
    * Return the renderer for an `object`.
    *
diff --git a/src/plugins/core.js b/src/plugins/core.js
index b2a65082c..d8fd690f4 100644
--- a/src/plugins/core.js
+++ b/src/plugins/core.js
@@ -742,8 +742,7 @@ function Plugin(options = {}) {
   const schema = {
       rules: [
           BLOCK_RENDER_RULE,
-          INLINE_RENDER_RULE,
-          ...defaultSchema.rules
+          INLINE_RENDER_RULE
       ]
   }
 
diff --git a/src/transforms/normalize.js b/src/transforms/normalize.js
index 411e25d39..a8721f8db 100644
--- a/src/transforms/normalize.js
+++ b/src/transforms/normalize.js
@@ -137,6 +137,11 @@ export function normalizeWith(transform, schema) {
   const { state } = transform
   const { document } = state
 
+  // Schema was not rule to edit the document
+  if (!schema.isNormalization) {
+    return transform
+  }
+
   return transform.normalizeNodeWith(schema, document)
 }