diff --git a/lisp/progmodes/typescript-ts-mode.el b/lisp/progmodes/typescript-ts-mode.el
index c4a5bd37e05..8c4364ecc5b 100644
--- a/lisp/progmodes/typescript-ts-mode.el
+++ b/lisp/progmodes/typescript-ts-mode.el
@@ -89,6 +89,7 @@ Argument LANGUAGE is either `typescript' or `tsx'."
      ((parent-is "object") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "object_type") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "enum_body") parent-bol typescript-ts-mode-indent-offset)
+     ((parent-is "class_body") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "arrow_function") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "parenthesized_expression") parent-bol typescript-ts-mode-indent-offset)