diff --git a/docs/index.md b/docs/index.md
index 657770bd..9c9415bd 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -2864,7 +2864,7 @@ instructions | [instructions](#transaction-instructions) | *Optional* Instructio
 This method returns a promise that resolves with an object with the following structure:
 
 <aside class="notice">
-All "prepare" methods have the same return type.
+All "prepare*" methods have the same return type.
 </aside>
 
 Name | Type | Description
@@ -2912,7 +2912,7 @@ return api.prepareOrder(address, order)
 
 ## prepareOrderCancellation
 
-`prepareOrderCancellation(address: string, sequence: number, instructions: Object): Promise<Object>`
+`prepareOrderCancellation(address: string, orderCancellation: Object, instructions: Object): Promise<Object>`
 
 Prepare an order cancellation transaction. The prepared transaction must subsequently be [signed](#sign) and [submitted](#submit).
 
@@ -2929,7 +2929,7 @@ instructions | [instructions](#transaction-instructions) | *Optional* Instructio
 This method returns a promise that resolves with an object with the following structure:
 
 <aside class="notice">
-All "prepare" methods have the same return type.
+All "prepare*" methods have the same return type.
 </aside>
 
 Name | Type | Description
diff --git a/docs/src/prepareOrder.md.ejs b/docs/src/prepareOrder.md.ejs
index 92eec543..91c795c0 100644
--- a/docs/src/prepareOrder.md.ejs
+++ b/docs/src/prepareOrder.md.ejs
@@ -13,7 +13,7 @@ Prepare an order transaction. The prepared transaction must subsequently be [sig
 This method returns a promise that resolves with an object with the following structure:
 
 <aside class="notice">
-All "prepare" methods have the same return type.
+All "prepare*" methods have the same return type.
 </aside>
 
 <%- renderSchema('output/prepare.json') %>
diff --git a/docs/src/prepareOrderCancellation.md.ejs b/docs/src/prepareOrderCancellation.md.ejs
index 53464fdf..dccd6ec7 100644
--- a/docs/src/prepareOrderCancellation.md.ejs
+++ b/docs/src/prepareOrderCancellation.md.ejs
@@ -1,6 +1,6 @@
 ## prepareOrderCancellation
 
-`prepareOrderCancellation(address: string, sequence: number, instructions: Object): Promise<Object>`
+`prepareOrderCancellation(address: string, orderCancellation: Object, instructions: Object): Promise<Object>`
 
 Prepare an order cancellation transaction. The prepared transaction must subsequently be [signed](#sign) and [submitted](#submit).
 
@@ -13,7 +13,7 @@ Prepare an order cancellation transaction. The prepared transaction must subsequ
 This method returns a promise that resolves with an object with the following structure:
 
 <aside class="notice">
-All "prepare" methods have the same return type.
+All "prepare*" methods have the same return type.
 </aside>
 
 <%- renderSchema("output/prepare.json") %>