diff --git a/htdocs/lib/mysql.lib.php b/htdocs/lib/mysql.lib.php
index 63464a11237..bf73b287faf 100644
--- a/htdocs/lib/mysql.lib.php
+++ b/htdocs/lib/mysql.lib.php
@@ -63,9 +63,11 @@ class DoliDb
     1050 => 'DB_ERROR_TABLE_ALREADY_EXISTS',
     1051 => 'DB_ERROR_NOSUCHTABLE',
     1054 => 'DB_ERROR_NOSUCHFIELD',
+    1060 => 'DB_ERROR_COLUMN_ALREADY_EXISTS',
     1061 => 'DB_ERROR_KEY_NAME_ALREADY_EXISTS', 
     1062 => 'DB_ERROR_RECORD_ALREADY_EXISTS',
     1064 => 'DB_ERROR_SYNTAX',
+    1091 => 'DB_ERROR_NOSUCHFIELD',
     1100 => 'DB_ERROR_NOT_LOCKED',
     1136 => 'DB_ERROR_VALUE_COUNT_ON_ROW',
     1146 => 'DB_ERROR_NOSUCHTABLE',