diff --git a/legacy.yml b/legacy.yml
new file mode 100644
index 0000000..da55b36
--- /dev/null
+++ b/legacy.yml
@@ -0,0 +1,6 @@
+---
+Name: spamprotectionlegacy
+---
+SilverStripe\ORM\DatabaseAdmin:
+  classname_value_remapping:
+    EditableSpamProtectionField: 'SilverStripe\SpamProtection\EditableSpamProtectionField'