diff --git a/book/SUMMARY.md b/book/SUMMARY.md
index 34bdc3d3..b1317642 100644
--- a/book/SUMMARY.md
+++ b/book/SUMMARY.md
@@ -6,6 +6,7 @@
 * [Installing](./installing.md)
   * [Supported targets](./installing/supported-targets.md)
   * [Migrating to/from Conduit](./installing/migrating-conduit.md)
+  * [Migrating to/from Conduwuit](./installing/migrating-conduwuit.md)
 * [Contributing](./contributing.md)
   * [Coordinated vulnerability disclosure](./contributing/security.md)
   * [Style guide](./contributing/style-guide.md)
diff --git a/book/installing/migrating-conduwuit.md b/book/installing/migrating-conduwuit.md
new file mode 100644
index 00000000..7530f532
--- /dev/null
+++ b/book/installing/migrating-conduwuit.md
@@ -0,0 +1,6 @@
+# Migrating to/from Conduwuit
+
+Current Conduwuit is explicitly incompatible with the Conduit/Grapevine
+database format. Some older versions have been migrated to Grapevine
+successfully, but we haven't evaluated which versions it is safe to migrate
+from yet. Try this at your own risk, and *definitely* take a backup first.