diff --git a/lib/nntp/tiny/db.py b/lib/nntp/tiny/db.py
index 8744064..2524cd2 100644
--- a/lib/nntp/tiny/db.py
+++ b/lib/nntp/tiny/db.py
@@ -127,4 +127,4 @@ class Database():
         cr  = self.db.execute(sql, list(values.values()))
         row = cr.fetchone()
 
-        return row[0]
+        return row[0] if row is not None else None