diff --git a/css/light-grey.css b/css/light-grey.css
index f8d1c8e4fe..2b2534aba1 100644
--- a/css/light-grey.css
+++ b/css/light-grey.css
@@ -2587,7 +2587,6 @@ span.search-button, span.refresh-button {
   margin-right: 5px;
   -webkit-filter: grayscale(100%);
   filter: grayscale(100%);
-  filter: gray;
   opacity: 0.5;
 }
 #itop-breadcrumb .breadcrumb-item a {
diff --git a/css/light-grey.scss b/css/light-grey.scss
index c347d71f96..8af9db34a3 100644
--- a/css/light-grey.scss
+++ b/css/light-grey.scss
@@ -2933,7 +2933,6 @@ span.search-button, span.refresh-button {
 
 	  -webkit-filter: grayscale(100%);
 	  filter: grayscale(100%);
-	  filter: gray;
 
 	  // IE has no filter option: at least, have some effect when hovering...
 	  opacity: 0.5;