diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index e90859271..2705bdd44 100644
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -2452,6 +2452,7 @@ StScrollBar StButton#vhandle:active {
 
 .screen-shield-background {
     background: black;
+    box-shadow: 0px 4px 8px rgba(0,0,0,0.9);
 }
 
 #lockDialogGroup {