diff --git a/rpi/blinkingTest.py b/rpi/blinkingTest.py
index f38c373..209e75c 100644
--- a/rpi/blinkingTest.py
+++ b/rpi/blinkingTest.py
@@ -64,7 +64,7 @@ blinkFrameCanvases.append(offscreen_interpolated_canvasB.SetImage(fullBlinkImage
 
 
 def update_screen():
-    global DesiredBlinkState, currentBlinkState, blinkFrameCanvases, matrix, offscreen_interpolated_canvasA
+    # global DesiredBlinkState, currentBlinkState, blinkFrameCanvases, matrix, offscreen_interpolated_canvasA
 
     # open eye again after blink
     if currentBlinkState == 10: