diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 8f76633abb3..30595a8922e 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -1193,6 +1193,7 @@ label.error {
     background: -moz-linear-gradient(#dc5f59, #b33630);
     background: -webkit-gradient(linear, left top, left bottom, from(#dc5f59), to(#b33630));
     background: -webkit-linear-gradient(#dc5f59, #b33630);
+    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr= #dc5f59, endColorstr= #b33630, GradientType=0); // IE9 and down
     -moz-box-shadow: none;
     -webkit-box-shadow: none;
     -box-shadow: none;