diff --git a/doc/kryptools.ipynb b/doc/kryptools.ipynb
index c234f72..6bb988b 100644
--- a/doc/kryptools.ipynb
+++ b/doc/kryptools.ipynb
@@ -2171,7 +2171,7 @@
    "id": "9efdd934-1fe0-4ca0-be46-50854d67ee81",
    "metadata": {},
    "source": [
-    "Note that `eye` will give you the identity matrix. There is also a function `zero` to create a zero matrix."
+    "Note that `eye` will give you the identity matrix. There is also a function `zeros` to create a zero matrix."
    ]
   },
   {