diff --git a/Makefile b/Makefile
index 7b04c1dcf..f0f65168e 100644
--- a/Makefile
+++ b/Makefile
@@ -111,7 +111,7 @@ pydocstyle_report.txt: $(PYSOURCES)
 diff_pydocstyle_report: pydocstyle_report.txt
 	diff-quality --compare-branch=main --violations=pydocstyle --fail-under=100 $^
 
-## codespell              : check for common mispellings
+## codespell              : check for common misspellings
 codespell:
 	codespell -w $(shell git ls-files | grep -v cwltool/schemas | grep -v cwltool/jshint/ | grep -v mypy-stubs)
 
diff --git a/cwltool/run_job.py b/cwltool/run_job.py
index 93b4e8a94..ac2f1025d 100644
--- a/cwltool/run_job.py
+++ b/cwltool/run_job.py
@@ -42,7 +42,7 @@ def main(argv: List[str]) -> int:
       "stdout_path": a string (or a null) giving the path that should receive the STDOUT
       "stderr_path": a string (or a null) giving the path that should receive the STDERR
 
-    The second argument is optional, it specifes a shell script to execute prior,
+    The second argument is optional, it specifies a shell script to execute prior,
       and the environment variables it sets will be combined with the environment
       variables from the "env" key in the JSON dictionary from the first argument.
     """
diff --git a/setup.cfg b/setup.cfg
index 11b473f31..42f8e1822 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,3 +13,6 @@ include_trailing_comma = True
 force_grid_wrap = 0
 use_parentheses = True
 line_length = 88
+
+[codespell]
+ignore-words-list=ORE,ore,RO,ro