diff --git a/filter/filter_test.go b/filter/filter_test.go
index a027758e..3150128f 100644
--- a/filter/filter_test.go
+++ b/filter/filter_test.go
@@ -75,6 +75,7 @@ const (
 	outKNN   = "testout/test_outKNN.mjpeg"
 	outMOG   = "testout/test_outMOG.mjpeg"
 )
+
 const (
 	debug             = false
 	motionDownscaling = 1