diff --git a/CodeExamples/CodeExamples.ipynb b/CodeExamples/CodeExamples.ipynb
index 9ef043dfa6a525664bc71a0d2e92b107d3d7b6a8..75bf0e5973d111695902e3997c9d279c7e02d2f3 100644
--- a/CodeExamples/CodeExamples.ipynb
+++ b/CodeExamples/CodeExamples.ipynb
@@ -143,11 +143,11 @@
     "Some more advanced examples using extensive OOP.\n",
     "\n",
     "> [Vector](Vectors.ipynb): A more complete Vector3d class than presented in the notes with some more complex Python constructs.  \n",
-    "> [Molecule](Molecule.ipynb): A part of the solution to optional checkpoint 6 with some more additional ```Python``` concepts.  \n",
+    "> [Molecule](Molecule.ipynb): A part of the solution to optional [Checkpoint 6](../Checkpoints/Checkpoint6.ipynb) with some more additional ```Python``` concepts.  \n",
     "\n",
     "Data supplied\n",
     "\n",
-    "> [oxygen.data](oxygen.data): Data for a single oxyxen atom to test [Molecule](Molecule.ipynb)  \n",
+    "> [oxygen.data](oxygen.data): Data for a single oxygen atom to test [Molecule](Molecule.ipynb)  \n",
     "> [water.data](water.data): Data for water molecule to test [Molecule](Molecule.ipynb)  \n",
     "\n",
     "\n",