diff --git a/htdocs/admin/tools/listevents.php b/htdocs/admin/tools/listevents.php
index 1a45466141b..6d6a8edb10f 100644
--- a/htdocs/admin/tools/listevents.php
+++ b/htdocs/admin/tools/listevents.php
@@ -302,7 +302,7 @@ if ($result) {
 
 	$center = '';
 	if ($num) {
-		$center = '<a class="butActionDelete" href="'.$_SERVER["PHP_SELF"].'?action=purge">'.$langs->trans("Purge").'</a>';
+		$center = '<a class="butActionDelete small" href="'.$_SERVER["PHP_SELF"].'?action=purge">'.$langs->trans("Purge").'</a>';
 	}
 
 	print '<form method="POST" action="'.$_SERVER["PHP_SELF"].'">';
@@ -459,7 +459,7 @@ if ($result) {
 		// More informations
 		print '<td class="right">';
 		$htmltext = '<b>'.$langs->trans("UserAgent").'</b>: '.($obj->user_agent ? dol_string_nohtmltag($obj->user_agent) : $langs->trans("Unknown"));
-		$htmltext .= '<br><b>'.$langs->trans("PrefixSession").'</b>: '.($obj->prefix_session ? dol_string_nohtmltag($obj->prefix_session) : $langs->trans("Unknown"));
+		$htmltext .= '<br><b>'.$langs->trans("SuffixSessionName").' (DOLSESSID_...)</b>: '.($obj->prefix_session ? dol_string_nohtmltag($obj->prefix_session) : $langs->trans("Unknown"));
 		print $form->textwithpicto('', $htmltext);
 		print '</td>';
 
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 281806d8cdb..89760a0767f 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -2298,4 +2298,4 @@ MAIN_MAIL_SMTPS_AUTH_TYPE=Authentification method
 UsePassword=Use a password
 UseOauth=Use a OAUTH token
 Images=Images
-MaxNumberOfImagesInGetPost=Max number of images allowed in GETPOST check
+MaxNumberOfImagesInGetPost=Max number of images allowed in GETPOST check
\ No newline at end of file
diff --git a/htdocs/langs/en_US/main.lang b/htdocs/langs/en_US/main.lang
index 08ca4c5ae62..1cc05709471 100644
--- a/htdocs/langs/en_US/main.lang
+++ b/htdocs/langs/en_US/main.lang
@@ -1188,3 +1188,4 @@ UrlToCheck=Url to check
 Automation=Automation
 CreatedByEmailCollector=Created by Email collector
 CreatedByPublicPortal=Created from Public portal
+UserAgent=User Agent
\ No newline at end of file