diff --git a/ChangeLog b/ChangeLog
index a22765ebb..abed501a3 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,6 +8,8 @@ $Source$
 2005-12-06 Michal Čihař  <michal@cihar.com>
     * libraries/config.default.php: Modify default export configuration (RFE
       #1373891).
+    * libraries/database_interface.lib.php: Do not add BINARY types multiple
+      times (bug #1374457).
 
 2005-12-06 Sebastian Mendel <cybot_tm@users.sourceforge.net>
     * libraries/common.lib.php: wrong quote
diff --git a/libraries/database_interface.lib.php b/libraries/database_interface.lib.php
index f1f245b1d..845f31b69 100644
--- a/libraries/database_interface.lib.php
+++ b/libraries/database_interface.lib.php
@@ -572,12 +572,10 @@ function PMA_DBI_postConnect($link, $is_controluser = FALSE) {
             $charset_connection   = PMA_DBI_get_variable('character_set_connection', PMA_DBI_GETVAR_SESSION, $link);
         }
 
-        // Add some field types to the list
-        // (we pass twice here; feel free to code something better :)
-        if (!defined('PMA_ADDED_FIELD_TYPES')) {
+        // Add some field types to the list, this needs to be done once per session!
+        if ($GLOBALS['cfg']['ColumnTypes'][count($GLOBALS['cfg']['ColumnTypes']) - 1] != 'VARBINARY') {
             $GLOBALS['cfg']['ColumnTypes'][] = 'BINARY';
             $GLOBALS['cfg']['ColumnTypes'][] = 'VARBINARY';
-            define('PMA_ADDED_FIELD_TYPES',1);
         }
 
     } else {