diff --git a/modoboa/admin/templates/admin/domain_detail.html b/modoboa/admin/templates/admin/domain_detail.html
index e382ba8f7..50f689dcf 100644
--- a/modoboa/admin/templates/admin/domain_detail.html
+++ b/modoboa/admin/templates/admin/domain_detail.html
@@ -208,8 +208,7 @@
       });
   });
   function copy(id) {
-    const text = document.getElementById(id).textContent;
-    navigator.clipboard.writeText(text);
+    navigator.clipboard.writeText(document.getElementById(id).textContent);
   }
   </script>
 {% endblock %}