diff --git a/html/changelogs/AutoChangeLog-pr-5421.yml b/html/changelogs/AutoChangeLog-pr-5421.yml
new file mode 100644
index 0000000000..1e4b3c7f9e
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+++ b/html/changelogs/AutoChangeLog-pr-5421.yml
@@ -0,0 +1,4 @@
+author: "CitadelStationBot"
+delete-after: True
+changes: 
+  - bugfix: "Prevents megafauna (and other large things like spiders and mulebots) from going into machines"