diff --git a/file-formats/ddlx/README.md b/file-formats/ddlx/README.md
index 1f11b9e82..ed7f01ed6 100644
--- a/file-formats/ddlx/README.md
+++ b/file-formats/ddlx/README.md
@@ -4,4 +4,4 @@
 File | Cardinality | Definition | Schema | Example
 :--- | :---  | :--- | :--- | :---
 `<name>.ddlx.json` | 1 | [`zif_aff_ddlx_v1.intf.abap`](./type/zif_aff_ddlx_v1.intf.abap) | [`ddlx-v1.json`](./ddlx-v1.json) | [`z_aff_example_ddlx.ddlx.json`](./examples/z_aff_example_ddlx.ddlx.json)
-`<name>.ddlx.cds` | 1 | [CDS](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abencds.htm) | | [`z_aff_example_ddlx.ddlx.cds`](./examples/z_aff_example_ddlx.ddlx.cds)
+`<name>.ddlx.acds` | 1 | [CDS](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abencds.htm) | | [`z_aff_example_ddlx.ddlx.acds`](./examples/z_aff_example_ddlx.ddlx.acds)
diff --git a/file-formats/ddlx/examples/z_aff_example_ddlx.ddlx.cds b/file-formats/ddlx/examples/z_aff_example_ddlx.ddlx.acds
similarity index 100%
rename from file-formats/ddlx/examples/z_aff_example_ddlx.ddlx.cds
rename to file-formats/ddlx/examples/z_aff_example_ddlx.ddlx.acds