diff --git a/mastodon_email_bridge/mastodon_email_bridge.py b/mastodon_email_bridge/mastodon_email_bridge.py
index aea98ff..b0b9b38 100755
--- a/mastodon_email_bridge/mastodon_email_bridge.py
+++ b/mastodon_email_bridge/mastodon_email_bridge.py
@@ -110,6 +110,9 @@ class MastodonEmailBridge:
         res = cur.execute("SELECT id FROM sent_items")
         rows = res.fetchall()
         for row in rows:
+            self._log.debug(
+                row
+            )
             if row[0] in self.sent_items:
                 self._log.warning("Duplicate id in database '%s'", row[0])
             # else: