diff --git a/htdocs/core/lib/admin.lib.php b/htdocs/core/lib/admin.lib.php
index 0aa88aeeafa..cf817ae494d 100644
--- a/htdocs/core/lib/admin.lib.php
+++ b/htdocs/core/lib/admin.lib.php
@@ -1147,19 +1147,21 @@ function showModulesExludedForExternal($modules)
 	$text=$langs->trans("OnlyFollowingModulesAreOpenedToExternalUsers");
 	$listofmodules=explode(',',$conf->global->MAIN_MODULES_FOR_EXTERNAL);
 	$i=0;
-	foreach($modules as $module)
-	{
-		$moduleconst=$module->const_name;
-		$modulename=strtolower($module->name);
-		//print 'modulename='.$modulename;
-
-		//if (empty($conf->global->$moduleconst)) continue;
-		if (! in_array($modulename,$listofmodules)) continue;
-
-		if ($i > 0) $text.=', ';
-		else $text.=' ';
-		$i++;
-		$text .= $langs->trans('Module'.$module->numero.'Name');
+	if (!empty($modules)) {
+		foreach($modules as $module)
+		{
+			$moduleconst=$module->const_name;
+			$modulename=strtolower($module->name);
+			//print 'modulename='.$modulename;
+	
+			//if (empty($conf->global->$moduleconst)) continue;
+			if (! in_array($modulename,$listofmodules)) continue;
+	
+			if ($i > 0) $text.=', ';
+			else $text.=' ';
+			$i++;
+			$text .= $langs->trans('Module'.$module->numero.'Name');
+		}
 	}
 	return img_picto($langs->trans('InfoAdmin'), 'star').' '.$text;
 }