diff --git a/examples/magtag_simpletest.py b/examples/magtag_simpletest.py
index dc7cb02..1d43191 100644
--- a/examples/magtag_simpletest.py
+++ b/examples/magtag_simpletest.py
@@ -19,8 +19,6 @@
 button_colors = ((255, 0, 0), (255, 150, 0), (0, 255, 255), (180, 0, 255))
 button_tones = (1047, 1318, 1568, 2093)
 
-timestamp = time.monotonic()
-
 while True:
     for i, b in enumerate(magtag.peripherals.buttons):
         if not b.value: