diff --git a/packages/slate/src/interfaces/editor.ts b/packages/slate/src/interfaces/editor.ts
index 055a845be..b8618ebab 100644
--- a/packages/slate/src/interfaces/editor.ts
+++ b/packages/slate/src/interfaces/editor.ts
@@ -1736,4 +1736,3 @@ export type NodeMatch<T extends Node> =
   | ((node: Node, path: Path) => boolean)
 
 export type PropsCompare = (prop: Partial<Node>, node: Partial<Node>) => boolean
-export type PropsMerge = (prop: Partial<Node>, node: Partial<Node>) => object
diff --git a/packages/slate/src/transforms/node.ts b/packages/slate/src/transforms/node.ts
index ba1c32834..c2747ffa4 100644
--- a/packages/slate/src/transforms/node.ts
+++ b/packages/slate/src/transforms/node.ts
@@ -11,7 +11,7 @@ import {
   NodeEntry,
   Ancestor,
 } from '..'
-import { NodeMatch, PropsCompare, PropsMerge } from '../interfaces/editor'
+import { NodeMatch, PropsCompare } from '../interfaces/editor'
 
 export interface NodeTransforms {
   insertNodes: <T extends Node>(
@@ -76,7 +76,6 @@ export interface NodeTransforms {
       split?: boolean
       voids?: boolean
       compare?: PropsCompare
-      merge?: PropsMerge
     }
   ) => void
   splitNodes: <T extends Node>(
@@ -571,11 +570,10 @@ export const NodeTransforms: NodeTransforms = {
       split?: boolean
       voids?: boolean
       compare?: PropsCompare
-      merge?: PropsMerge
     } = {}
   ): void {
     Editor.withoutNormalizing(editor, () => {
-      let { match, at = editor.selection, compare, merge } = options
+      let { match, at = editor.selection, compare } = options
       const {
         hanging = false,
         mode = 'lowest',
@@ -662,11 +660,7 @@ export const NodeTransforms: NodeTransforms = {
             // Omit new properties from the old properties list
             if (node.hasOwnProperty(k)) properties[k] = node[k]
             // Omit properties that have been removed from the new properties list
-            if (merge) {
-              if (props[k] != null) newProperties[k] = merge(node[k], props[k])
-            } else {
-              if (props[k] != null) newProperties[k] = props[k]
-            }
+            if (props[k] != null) newProperties[k] = props[k]
           }
         }
 
diff --git a/packages/slate/test/transforms/setNodes/merge/text.tsx b/packages/slate/test/transforms/setNodes/merge/text.tsx
deleted file mode 100644
index 6fc5c1937..000000000
--- a/packages/slate/test/transforms/setNodes/merge/text.tsx
+++ /dev/null
@@ -1,26 +0,0 @@
-/** @jsx jsx */
-import { Transforms, Text } from 'slate'
-import { jsx } from '../../..'
-import _ from 'lodash'
-
-export const run = editor => {
-  Transforms.setNodes(
-    editor,
-    { a: { b: 2, c: 3 } },
-    { at: [0, 0], match: Text.isText, merge: (n, p) => _.defaultsDeep(p, n) }
-  )
-}
-export const input = (
-  <editor>
-    <block>
-      <text a={{ b: 1 }}>word</text>
-    </block>
-  </editor>
-)
-export const output = (
-  <editor>
-    <block>
-      <text a={{ b: 2, c: 3 }}>word</text>
-    </block>
-  </editor>
-)