diff --git a/README.md b/README.md
index 1839721..fef22c8 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Here is a list of all available properties:
 | cxfVersion            | Provider\<String>     | "3.4.3"                                          | The version of CXF to use.                                                                                           |
 | verbose               | Provider\<Boolean>    | true                                             | Enables verbose output from CXF.                                                                                     |
 | suppressGeneratedDate | Provider\<Boolean>    | true                                             | Suppresses generating dates in CXF. Default is true to support reproducible builds and to work with the build cache. |
-| markGenerated         | Provider\<Boolean>    | "no"                                             | Adds the @Generated annotation to the generated sources. See below for details as there are some gotchas with this.  |                                                              |
+| markGenerated         | Provider\<String>     | "no"                                             | Adds the @Generated annotation to the generated sources. See below for details as there are some gotchas with this.  |                                                              |
 | options               | ListProperty\<String> | \[empty\]                                        | Additional options to pass to the tool. See [here](https://cxf.apache.org/docs/wsdl-to-java.html) for details.       |