diff --git a/docs/manual/BUILDING b/docs/manual/BUILDING
new file mode 100644
index 00000000000..71ad9458bcb
--- /dev/null
+++ b/docs/manual/BUILDING
@@ -0,0 +1,2 @@
+For instructions on building the manual, see
+<https://httpd.apache.org/docs-project/docsformat.html>.