diff --git a/boblight.conf.rb b/boblight.conf.rb
index e525c64..68744b5 100755
--- a/boblight.conf.rb
+++ b/boblight.conf.rb
@@ -9,7 +9,7 @@ port		19333
 [device]
 name		screenlight
 type		atmo
-output		/dev/ttyAMA0
+output		/dev/ttyUSB0
 rate		115200
 channels	180
 interval	20000