diff --git a/octoprint_smart_filament_sensor/__init__.py b/octoprint_smart_filament_sensor/__init__.py
index c99632a..139b3e7 100644
--- a/octoprint_smart_filament_sensor/__init__.py
+++ b/octoprint_smart_filament_sensor/__init__.py
@@ -24,7 +24,7 @@ def initialize(self):
         GPIO.setwarnings(False)        # Disable GPIO warnings
 
         self.print_started = False
-        self.last_movement_time = None
+        self.last_movement_time = datetime.now()
         self.lastE = -1
         self.currentE = -1
         self.START_DISTANCE_OFFSET = 7