diff --git a/htdocs/core/class/timespent.class.php b/htdocs/core/class/timespent.class.php
index 256077fa40f..711aa8e25e9 100755
--- a/htdocs/core/class/timespent.class.php
+++ b/htdocs/core/class/timespent.class.php
@@ -725,7 +725,7 @@ class TimeSpent extends CommonObject
 		if (isset($this->status)) {
 			$datas['picto'] .= ' '.$this->getLibStatut(5);
 		}
-		$datas['ref'] .= '<br><b>'.$langs->trans('Ref').':</b> '.$this->ref;
+		$datas['ref'] = '<br><b>'.$langs->trans('Ref').':</b> '.$this->ref;
 
 		return $datas;
 	}
diff --git a/htdocs/modulebuilder/template/class/myobject.class.php b/htdocs/modulebuilder/template/class/myobject.class.php
index b4f41e00b2f..52587f1b7d9 100644
--- a/htdocs/modulebuilder/template/class/myobject.class.php
+++ b/htdocs/modulebuilder/template/class/myobject.class.php
@@ -774,7 +774,7 @@ class MyObject extends CommonObject
 		if (isset($this->status)) {
 			$datas['picto'] .= ' '.$this->getLibStatut(5);
 		}
-		$datas['ref'] .= '<br><b>'.$langs->trans('Ref').':</b> '.$this->ref;
+		$datas['ref'] = '<br><b>'.$langs->trans('Ref').':</b> '.$this->ref;
 
 		return $datas;
 	}