diff --git a/classes/backlight/backlight.lua b/classes/backlight/backlight.lua
index 500626f..f9f2b26 100644
--- a/classes/backlight/backlight.lua
+++ b/classes/backlight/backlight.lua
@@ -45,11 +45,11 @@ function P:backlight_up()
 		return
 	end
 
-	awful.spawn("xbacklight -inc 5", false)
 	self.brightness = self.brightness + 5
 	if self.brightness > self.max_value then
 		self.brightness = self.max_value
 	end
+	self:backlight_set(self.brightness)
 	self:_update_widget()
 end
 
@@ -58,11 +58,11 @@ function P:backlight_down()
 		return
 	end
 
-	awful.spawn("xbacklight -dec 5", false)
 	self.brightness = self.brightness - 5
 	if self.brightness < self.min_value then
 		self.brightness = self.min_value
 	end
+	self:backlight_set(self.brightness)
 	self:_update_widget()
 end