diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index c413a430a5..e3a9c79bd5 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -10,4 +10,9 @@ jobs:
     # codespell version should be kept in sync with .pre-commit-config.yml
     - run: pip install --user codespell==2.4.1 tomli
     - run: codespell
-
+    # additionally check for misspelling of "MicroPython"
+    - run: |
+        if git grep -n Micropython -- ":(exclude).github/workflows/codespell.yml"; then
+            echo "Please correct capitalisation of MicroPython on the above lines"
+            exit 1
+        fi