diff --git a/bench/plot.ipynb b/bench/plot.ipynb
index 15eb6957..3af8f6c0 100644
--- a/bench/plot.ipynb
+++ b/bench/plot.ipynb
@@ -1,5 +1,5 @@
 {
- "cells": [
+  "cells": [
   {
    "cell_type": "code",
    "execution_count": 9,