diff --git a/setup/applicationinstaller.class.inc.php b/setup/applicationinstaller.class.inc.php
index 36c795023..9bd6ca56d 100644
--- a/setup/applicationinstaller.class.inc.php
+++ b/setup/applicationinstaller.class.inc.php
@@ -548,18 +548,18 @@ class ApplicationInstaller
 		// Starting 2.0, all table names must be lowercase
 		if ($sMode != 'install')
 		{
-			SetupPage::log_info("Renaming 'priv_internalUser' into 'priv_internaluser' (lowercase)"); 
+			SetupPage::log_info("Renaming '{$sDBPrefix}priv_internalUser' into '{$sDBPrefix}priv_internaluser' (lowercase)"); 
 			// This command will have no effect under Windows...
 			// and it has been written in two steps so as to make it work under windows!
 			CMDBSource::SelectDB($sDBName);
 			try
 			{
-				$sRepair = "RENAME TABLE `priv_internalUser` TO `priv_internaluser_other`, `priv_internaluser_other` TO `priv_internaluser`";
+				$sRepair = "RENAME TABLE `{$sDBPrefix}priv_internalUser` TO `{$sDBPrefix}priv_internaluser_other`, `{$sDBPrefix}priv_internaluser_other` TO `{$sDBPrefix}priv_internaluser`";
 				CMDBSource::Query($sRepair);
 			}
 			catch (Exception $e)
 			{
-				SetupPage::log_info("Renaming 'priv_internalUser' failed (already done in a previous upgrade?)"); 
+				SetupPage::log_info("Renaming '{$sDBPrefix}priv_internalUser' failed (already done in a previous upgrade?)"); 
 			}
 		}