diff --git a/themes/original/css/common.css.php b/themes/original/css/common.css.php
index d74b3ef7df..dd8a2d5312 100644
--- a/themes/original/css/common.css.php
+++ b/themes/original/css/common.css.php
@@ -1990,6 +1990,7 @@ fieldset .disabled-field td {
 }
 .toggleButton .container td {
     background-image: none;
+    background: none;
 }
 .toggleButton .toggleOn {
     color: #fff;
diff --git a/themes/pmahomme/css/common.css.php b/themes/pmahomme/css/common.css.php
index 6c3aff2c4d..61c3bb77dc 100644
--- a/themes/pmahomme/css/common.css.php
+++ b/themes/pmahomme/css/common.css.php
@@ -2531,6 +2531,7 @@ fieldset .disabled-field td {
 }
 .toggleButton .container td {
     background-image: none;
+    background: none;
 }
 .toggleButton .toggleOn {
     color: #fff;