diff --git a/ops/nixos/bvm-prosody/default.nix b/ops/nixos/bvm-prosody/default.nix
index d85e64e0e4..b70f1a1827 100644
--- a/ops/nixos/bvm-prosody/default.nix
+++ b/ops/nixos/bvm-prosody/default.nix
@@ -78,6 +78,12 @@
     ssl.key = "/var/lib/acme/xmpp.lukegb.com/privkey.pem";
 
     extraConfig = ''
+      storage = "sql"
+      sql = {
+        driver = "SQLite3";
+        database = "prosody.db";
+      }
+
       archive_expires_after = "never"  -- keep messages forever
 
       proxy65_address = "xmpp.lukegb.com"