diff --git a/rc.lua b/rc.lua
index 5da3583..4430f42 100644
--- a/rc.lua
+++ b/rc.lua
@@ -500,7 +500,7 @@ globalkeys = awful.util.table.join(
         awful.spawn.easy_async("tvrs disable --sound", function() end)
     end, {description="Disable the second screen", group="screen control"}),
 
-    awful.key({modkey}, "#90", function()
+    awful.key({modkey, "Shift"}, "#90", function()
         awful.spawn.easy_async("tvrs only-secondary --sound", function() end)
     end, {description="Disable the primary screen, using only the second", group="screen control"}),