diff --git a/playbook/app/pb_kits/playbook/pb_lightbox/lightbox.scss b/playbook/app/pb_kits/playbook/pb_lightbox/lightbox.scss
index 01a26c84e8..70917eb14e 100644
--- a/playbook/app/pb_kits/playbook/pb_lightbox/lightbox.scss
+++ b/playbook/app/pb_kits/playbook/pb_lightbox/lightbox.scss
@@ -2,7 +2,7 @@
 @import "../tokens/screen_sizes";
 
 $slides-margin: $space-md;
-$lightbox-z-index-floor: 9999900;
+$lightbox-z-index-floor: $z_10 !default;
 
  .carousel {