diff --git a/after/ftplugin/asciidoc.lua b/after/ftplugin/asciidoc.lua
new file mode 100644
index 0000000..2d84c47
--- /dev/null
+++ b/after/ftplugin/asciidoc.lua
@@ -0,0 +1,2 @@
+-- Options for AsciiDoc files, mainly used in diary situations
+vim.opt.textwidth = 80