diff --git a/apps/common/main/resources/less/multislider-gradient.less b/apps/common/main/resources/less/multislider-gradient.less
index c6c7fabf7..ec8b0d2ac 100644
--- a/apps/common/main/resources/less/multislider-gradient.less
+++ b/apps/common/main/resources/less/multislider-gradient.less
@@ -3,6 +3,8 @@
     background-color: transparent;
 
     .thumb {
+        width: 13px;
+        height: 15px;
         top: 18px;
         background: none;