diff --git a/ament_uncrustify/ament_uncrustify/configuration/ament_code_style.cfg b/ament_uncrustify/ament_uncrustify/configuration/ament_code_style.cfg
index d030ece7..feac0843 100644
--- a/ament_uncrustify/ament_uncrustify/configuration/ament_code_style.cfg
+++ b/ament_uncrustify/ament_uncrustify/configuration/ament_code_style.cfg
@@ -769,7 +769,7 @@ indent_braces_no_struct         = false    # false/true
 indent_brace_parent             = false    # false/true
 
 # Indent based on the paren open instead of the brace open in '({\n', default is to indent by brace.
-indent_paren_open_brace         = false    # false/true
+indent_paren_open_brace         = true     # false/true
 
 # indent a C# delegate by another level, default is to not indent by another level.
 indent_cs_delegate_brace        = false    # false/true