diff --git a/antora/build-trigger.txt b/antora/build-trigger.txt
new file mode 100644
index 000000000..7ca9c1e80
--- /dev/null
+++ b/antora/build-trigger.txt
@@ -0,0 +1,3 @@
+This is a file you can change when all you want to do is trigger a full rebuild and deploy.
+
+It's useful when you've been fixing up antora sources elsewhere and want to see your changes pulled in.
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