diff --git a/.source_state b/.source_state
index 276f16a..40b9bd3 100644
--- a/.source_state
+++ b/.source_state
@@ -1 +1 @@
-dc55c098ea6048164d135b53acb35abf
+e3299495debd6fd0a690dbec467177d1
diff --git a/SD/index.qmd b/SD/index.qmd
index f2a4ff9..eeafff2 100644
--- a/SD/index.qmd
+++ b/SD/index.qmd
@@ -16,6 +16,7 @@ knitr::opts_chunk$set(echo = TRUE)
 #| message: false
 
 data.frame(fd = dir(".", pattern = "[-_]"))  |>
+  dplyr::filter(!grepl("^_", fd)) |>
   dplyr::filter(!grepl("_files", fd)) |>
   dplyr::mutate(fn = purrr::map_chr(fd, ~ file.path(.x, dir(.x,
     pattern = "index.qmd|index.html"))[1])) |>