diff --git a/README.md b/README.md
index d145beb3..82c8ec80 100644
--- a/README.md
+++ b/README.md
@@ -225,7 +225,7 @@ Sets `value` to `defaultValue` if `value` is `nil`.
 > ⬇️ `{ value?, onChange? }`
 
 Replaces `value` with the return value of `transformValue(value, previous?: { transformedValue, value })`, if set. Note that `previous` is not provided when the component first mounts, since there are no previous prop values.
-Replaces `value` passed to `onChange(value, name, payload)` with the return value of `transformOnChange(value, name, payload)`, if set.
+Replaces `value` passed to `onChange(value, name, payload)` with the return value of `transformOnChange(value, name, payload, previous: { transformedValue?, value? })`, if set.
 
 #### `filterable`
 
diff --git a/src/values.js b/src/values.js
index 6a502923..3b010956 100644
--- a/src/values.js
+++ b/src/values.js
@@ -36,7 +36,7 @@ function transformedOnChange(element) {
   return (value, name, payload) => {
     const { props } = element
     return props.onChange(
-      props.transformOnChange(value, name, payload),
+      props.transformOnChange(value, name, payload, element.state),
       name,
       payload,
     )
@@ -46,7 +46,7 @@ function transformedOnChange(element) {
 export const transformable = (Component) =>
   /*
   Replaces `value` with the return value of `transformValue(value, previous: { transformedValue?, value? })`, if set. Note that `previous` is not provided when the component first mounts, since there are no previous prop values.
-  Replaces `value` passed to `onChange(value, name, payload)` with the return value of `transformOnChange(value, name, payload)`, if set.
+  Replaces `value` passed to `onChange(value, name, payload)` with the return value of `transformOnChange(value, name, payload, previous: { transformedValue?, value? })`, if set.
   */
   setWrapperName(
     Component,