diff --git a/setup.cfg b/setup.cfg
index e0efd56..7791698 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -25,3 +25,8 @@ classifier =
 [files]
 packages =
     tenks
+
+[codespell]
+quiet-level = 4
+# Words to ignore:
+; ignore-words-list = example
diff --git a/tox.ini b/tox.ini
index faac840..8851a57 100644
--- a/tox.ini
+++ b/tox.ini
@@ -95,3 +95,12 @@ exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build
 import-order-style = pep8
 application-import-names = tenks
 filename = *.py
+
+[testenv:codespell]
+description =
+  Run codespell to check spelling
+deps = codespell
+# note(JayF): {posargs} lets us run `tox -ecodespell -- -w` to get codespell
+#             to correct spelling issues in our code it's aware of.
+commands =
+  codespell {posargs}
\ No newline at end of file