diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index 715e446faa5..70e960d424a 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -5971,3 +5971,5 @@ include dol_buildpath($path.'/theme/'.$theme.'/dropdown.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/info-box.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/progress.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/timeline.inc.php', 0);
+
+if (! empty($conf->global->THEME_CUSTOM_CSS)) print $conf->global->THEME_CUSTOM_CSS;
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index 08baeb664a2..377f18154fd 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -6076,5 +6076,6 @@ include dol_buildpath($path.'/theme/'.$theme.'/info-box.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/progress.inc.php', 0);
 include dol_buildpath($path.'/theme/eldy/timeline.inc.php', 0); // actually md use same style as eldy theme
 
+if (! empty($conf->global->THEME_CUSTOM_CSS)) print $conf->global->THEME_CUSTOM_CSS;
 
 if (is_object($db)) $db->close();