diff --git a/htdocs/install/upgrade.php b/htdocs/install/upgrade.php
index 22967d3ef4b..58cf7a170e5 100644
--- a/htdocs/install/upgrade.php
+++ b/htdocs/install/upgrade.php
@@ -130,6 +130,11 @@ if (! isset($_GET["action"]) || $_GET["action"] == "upgrade")
 		dolibarr_install_syslog("upgrade: ".$langs->transnoentities("ServerVersion")." : $version");
 		//print '<td align="right">'.join('.',$versionarray).'</td></tr>';
 	}
+	
+  // Force l'affichage de la progression
+	print '<tr><td>'.$langs->trans("PleaseBePatient").'</td>';
+	ob_flush();
+	flush();
 
 	if ($ok)
 	{
@@ -182,7 +187,6 @@ if (! isset($_GET["action"]) || $_GET["action"] == "upgrade")
 			}
 		}
 	}
-	
 
 	/***************************************************************************************
 	*
diff --git a/htdocs/langs/en_US/install.lang b/htdocs/langs/en_US/install.lang
index bd48d97488b..d47a87609b0 100644
--- a/htdocs/langs/en_US/install.lang
+++ b/htdocs/langs/en_US/install.lang
@@ -25,6 +25,7 @@ ErrorPHPVersionTooLow=PHP version too old. Version %s is required.
 IfDatabaseExistsGoBackAndCheckCreate=If database already exists, go back and uncheck "Create database" option.
 PHPVersion=PHP Version
 YouCanContinue=You can continue...
+PleaseBePatient=Please be patient...
 License=Using license
 ConfigurationFile=Configuration file
 WebPagesDirectory=Directory where web pages are stored
diff --git a/htdocs/langs/fr_FR/install.lang b/htdocs/langs/fr_FR/install.lang
index 42bfc3e63a1..de80f7c4431 100644
--- a/htdocs/langs/fr_FR/install.lang
+++ b/htdocs/langs/fr_FR/install.lang
@@ -25,6 +25,7 @@ ErrorPHPVersionTooLow=Version de PHP trop ancienne. La version %s est requise.
 IfDatabaseExistsGoBackAndCheckCreate=Si la base existe déjà, revenez en arrière et désactiver l'option "Créer la base de donnée".
 PHPVersion=Version PHP
 YouCanContinue=Vous pouvez continuer...
+PleaseBePatient=Merci de patienter...
 License=Licence d'utilisation
 ConfigurationFile=Fichier de configuration
 WebPagesDirectory=Répertoire contenat les pages web