diff --git a/src/syntax_mapping/builtins/unix-family/50-certbot.toml b/src/syntax_mapping/builtins/unix-family/50-certbot.toml
new file mode 100644
index 00000000..52d47988
--- /dev/null
+++ b/src/syntax_mapping/builtins/unix-family/50-certbot.toml
@@ -0,0 +1,3 @@
+# See https://eff-certbot.readthedocs.io/en/stable/using.html#configuration-file
+[mappings]
+"INI" = ["/etc/letsencrypt/renewal/*.conf"]