diff --git a/docs/endpoints/indices.md b/docs/endpoints/indices.md
index 3eee34a..b335f19 100644
--- a/docs/endpoints/indices.md
+++ b/docs/endpoints/indices.md
@@ -66,6 +66,7 @@ BDRX
 GPTW
 IBOV
 IBRA
+IBSD
 IBXL
 IBXX
 ICO2