diff --git a/libs/fingerprint_index.py b/libs/fingerprint_index.py
index 523890a..cb3ccb9 100644
--- a/libs/fingerprint_index.py
+++ b/libs/fingerprint_index.py
@@ -91,14 +91,13 @@ class FingerprintIndex:
   #
   def __insertRecord(self, md5_all, md5_list, filename):
     try:
-      logging.info("INSERT INTO md5_index VALUES(?, ?, ?): {}; {}; {}".format(md5_all, md5_list, filename))
+      logging.info("INSERT INTO md5_index VALUES(?, ?, ?): {}; {}; {}".format(md5_all, str(md5_list), filename))
       self.db_conn.execute(
         '''
         INSERT INTO md5_index VALUES(?, ?, ?)
-        ''', md5_all, md5_list, filename)
+        ''', (md5_all, str(md5_list), filename))
     except Exception as e:
-      print e
-      logging.error("Error inserting a row")
+      logging.error("Error inserting a row\n{}".format(e))
       raise FingerprintIndexWrite("Error inserting a row")
 
   #