diff --git a/rpi/blinkingTest.py b/rpi/blinkingTest.py
index 97d21d3..da95a8f 100644
--- a/rpi/blinkingTest.py
+++ b/rpi/blinkingTest.py
@@ -52,9 +52,9 @@ for alpha in range(10):
     blinkFrameCanvases[alpha] = offscreen_interpolated_canvas.SetImage(interpolated_image, unsafe=False)
     
 offscreen_interpolated_canvasA = matrix.CreateFrameCanvas()
-offscreen_interpolated_canvas.brightness = 50
+offscreen_interpolated_canvasA.brightness = 50
 interpolated_image.thumbnail((matrix.width, matrix.height), Image.ANTIALIAS)
-blinkFrameCanvases[0] = offscreen_interpolated_canvas.SetImage(noBlinkImage, unsafe=False)
+blinkFrameCanvases[0] = offscreen_interpolated_canvasA.SetImage(noBlinkImage, unsafe=False)
 
 offscreen_interpolated_canvas = matrix.CreateFrameCanvas()
 offscreen_interpolated_canvas.brightness = 50