1 files changed, 1 insertions, 1 deletions
diff --git a/develop/postgres.html b/develop/postgres.html
index 0371c7d374..378b55863a 100644
--- a/develop/postgres.html
+++ b/develop/postgres.html
@@ -307,7 +307,7 @@ simply run:</p>
 <pre><code class="language-sh">synapse_port_db --sqlite-database homeserver.db.snapshot \
     --postgres-config homeserver-postgres.yaml
 </code></pre>
-<p>The flag <code>--curses</code> displays a coloured curses progress UI.</p>
+<p>The flag <code>--curses</code> displays a coloured curses progress UI. (NOTE: if your terminal is too small the script will error out)</p>
 <p>If the script took a long time to complete, or time has otherwise passed
 since the original snapshot was taken, repeat the previous steps with a
 newer snapshot.</p>