diff --git a/tests/python/word.ipynb b/tests/python/word.ipynb
index 26f891bca..4e02bf224 100644
--- a/tests/python/word.ipynb
+++ b/tests/python/word.ipynb
@@ -350,7 +350,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Calling `simplifify()` will produce a shorter word that is compatible with the original word. For instance in the above word, the second `a` is compatible with `!a & b`, so the prefix can be shortened by rotating the cycle."
+    "Calling `simplify()` will produce a shorter word that is compatible with the original word. For instance, in the above word the second `a` is compatible with `!a & b`, so the prefix can be shortened by rotating the cycle."
    ]
   },
   {