diff --git a/boxtree/visualization.py b/boxtree/visualization.py
index ef946a9381421e9f627cfc1e1f7ac8ceedabc1c6..f852986b81fea5c2a586e0d98ce9c382a913882a 100644
--- a/boxtree/visualization.py
+++ b/boxtree/visualization.py
@@ -92,7 +92,4 @@ class TreePlotter:
                     ha="center", va="center",
                     bbox=dict(facecolor='white', alpha=0.5, lw=0))
 
-
-
-
 # vim: filetype=pyopencl:fdm=marker