diff --git a/scripts/Statemachine/CycleTimer.gd b/scripts/Statemachine/CycleTimer.gd
index e6299c3..beb29f4 100644
--- a/scripts/Statemachine/CycleTimer.gd
+++ b/scripts/Statemachine/CycleTimer.gd
@@ -17,7 +17,7 @@ func getStateAngle(index: int):
 func forceFilter():
 	bullets = bullets.filter(
 		func(b):
-			if b is BulletBase:
+			if is_instance_valid(b) && b is BulletBase:
 				return !b.destroying
 			else:
 				return false