diff --git a/docs/ref-supported.md b/docs/ref-supported.md
index c8437d007..e75dddee0 100644
--- a/docs/ref-supported.md
+++ b/docs/ref-supported.md
@@ -53,6 +53,7 @@ JOBD | Technical Job Definition | Yes
 LPDC | Launchpad short texts | [#107](https://github.com/larshp/abapGit/issues/107)
 MSAG | Message Class | Yes
 NROB | Number Range Objects | Yes
+OTGR | Object type group | [#1515](https://github.com/larshp/abapGit/issues/1515)
 PARA | SPA/GPA Parameters | Yes
 PDTS | Standard Task | [#153](https://github.com/larshp/abapGit/issues/153)
 PDWS | Workflow templates | [#154](https://github.com/larshp/abapGit/issues/154)