diff --git a/core/numpy/numpy-broadcasting.ipynb b/core/numpy/numpy-broadcasting.ipynb
index ee6bee2ac..1a871acbd 100644
--- a/core/numpy/numpy-broadcasting.ipynb
+++ b/core/numpy/numpy-broadcasting.ipynb
@@ -587,7 +587,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "2 * a[1:-1] - a[:-2] - a[2:]"
+    "2 * a[1:-1] - a[2:] - a[:-2]"
    ]
   },
   {