diff --git a/coolbox/core/track/arcs/plot.py b/coolbox/core/track/arcs/plot.py
index 8c13922..2871e3e 100644
--- a/coolbox/core/track/arcs/plot.py
+++ b/coolbox/core/track/arcs/plot.py
@@ -10,7 +10,7 @@
 
 def draw_tapered_arc(
     ax,
-    xy: tuple[float, float],
+    xy,
     diameter: float,
     height: float,
     line_width: float,