diff --git a/src/themes/Kali/sass/gnome-shell/_common-tweaks.scss b/src/themes/Kali/sass/gnome-shell/_common-tweaks.scss
index 16c6c11f..347ef4c2 100644
--- a/src/themes/Kali/sass/gnome-shell/_common-tweaks.scss
+++ b/src/themes/Kali/sass/gnome-shell/_common-tweaks.scss
@@ -12,6 +12,13 @@ $dialog_box_shadow: 0 2px 6px -2px transparentize(black, .8);
   icon-shadow: 0 1px 5px $shadow_color;
 }
 
+/* Slider */
+.slider {
+  -barlevel-border-width: 0;
+  -barlevel-height: 6px;
+  -slider-handle-radius: 0;
+}
+
 /* Message List */
 .message-list-controls {
   spacing: $base_padding * 2;