diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index de299dbafcd..ac95e4f25a4 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -10110,6 +10110,7 @@ function dolGetButtonAction($label, $html = '', $actionType = 'default', $url =
 		$attr['id'] = $id;
 	}
 
+
 	// Override attr
 	if (!empty($params['attr']) && is_array($params['attr'])) {
 		foreach ($params['attr'] as $key => $value) {
@@ -10123,6 +10124,11 @@ function dolGetButtonAction($label, $html = '', $actionType = 'default', $url =
 		}
 	}
 
+	// automatic add tooltip when title is detected
+	if (!empty($attr['title']) && !empty($attr['class']) && strpos($attr['class'], 'classfortooltip') === false) {
+		$attr['class'].= ' classfortooltip';
+	}
+
 	// Js Confirm button
 	if ($userRight && !empty($params['confirm'])) {
 		if (!is_array($params['confirm'])) {