diff --git a/website/source/api/txn.html.md b/website/source/api/txn.html.md
index d817c472b9..80032e3d1a 100644
--- a/website/source/api/txn.html.md
+++ b/website/source/api/txn.html.md
@@ -95,7 +95,7 @@ The table below shows this endpoint's support for
 
   - `Verb` `(string: <required>)` - Specifies the type of operation to perform.
 
-  - `Service` `(Service: <required>)` - Specifies the check to use
+  - `Check` `(Service: <required>)` - Specifies the check to use
   for the operation. See the [catalog endpoint](/api/catalog.html#parameters) for the fields in this object.
 
   Please see the table below for available verbs.
@@ -304,4 +304,4 @@ and valid check ID are required. Delete operations will not return a result on s
 | `cas`              | Sets, but with CAS semantics using the given ModifyIndex |
 | `get`              | Get the check, fails if it does not exist |
 | `delete`           | Delete the check |
-| `delete-cas`       | Delete, but with CAS semantics |
\ No newline at end of file
+| `delete-cas`       | Delete, but with CAS semantics |