diff --git a/spec/README.md b/spec/README.md
index 7fd5436..6f98980 100644
--- a/spec/README.md
+++ b/spec/README.md
@@ -243,19 +243,7 @@ Accepts JSON data that defines a new route to be appended to the current routes.
```
* **Error Responses**:
* **Code**: `400 Malformed JSON`
- * **Code**: `422 Invalid Data Type`
* **Code**: `422 Invalid Route Spec`
- * **Code**: `422 Missing Mandatory Field`
- **Header**: `Content-Type: application/json`
- **Content**:
- ```json
- {
- "missing_mandatory_fields": [
- "url_pattern",
- "command"
- ]
- }
- ```
* **Sample Call**:
```sh
$ curl -X POST --data-binary @- $KAPOW_URL/routes <
- **Content**:
- ```json
- {
- "missing_mandatory_fields": [
- "url_pattern",
- "command"
- ]
- }
- ```
- * **Code**: `422 Invalid Index Type`
* **Sample Call**:
```sh
$ curl -X PUT --data-binary @- $KAPOW_URL/routes <
- **Notes**: Although the resource path is correct, no such name is present in the request. For instance, `/request/headers/Foo`, when no `Foo` header is not present in the request.
+ * **Code**: `400 Invalid Resource`
+ * **Code**: `404 Not Found`
* **Sample Call**:
```sh
$ curl -X --data-binary '