diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index 996f1f90f9c..08e4503748f 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -1886,7 +1886,7 @@ class ExtraFields
 		$out = '<'.$tagtype.' id="trextrafieldseparator'.$key.(!empty($object->id)?'_'.$object->id:'').'" class="trextrafieldseparator trextrafieldseparator'.$key.(!empty($object->id)?'_'.$object->id:'').'">';
 		$out .= '<'.$tagtype_dyn.' '.(!empty($colspan)?'colspan="' . $colspan . '"':'').'>';
 		// Some js code will be injected here to manage the collapsing of extrafields
-		$out .= '<span class="cursorpointer '.($extrafield_collapse_display_value == 0 ? 'fas fa-square' : 'far fa-'.(($expand_display ? 'minus' : 'plus').'-square')).'"></span>&nbsp;';
+		$out .= '<span class="cursorpointer '.($extrafield_collapse_display_value == 0 ? 'fas fa-square opacitymedium' : 'far fa-'.(($expand_display ? 'minus' : 'plus').'-square')).'"></span>&nbsp;';
 		$out .= '<strong>';
 		$out .= $langs->trans($this->attributes[$object->table_element]['label'][$key]);
 		$out .= '</strong>';
diff --git a/htdocs/core/tpl/extrafields_view.tpl.php b/htdocs/core/tpl/extrafields_view.tpl.php
index ac243396c72..da6f90892c4 100644
--- a/htdocs/core/tpl/extrafields_view.tpl.php
+++ b/htdocs/core/tpl/extrafields_view.tpl.php
@@ -1,7 +1,7 @@
 <?php
 /* Copyright (C) 2014	Maxime Kohlhaas		<support@atm-consulting.fr>
  * Copyright (C) 2014	Juanjo Menent		<jmenent@2byte.es>
- * Copyright (C) 2021		Frédéric France		<frederic.france@netlogic.fr>
+ * Copyright (C) 2021	Frédéric France		<frederic.france@netlogic.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by