diff --git a/setup.cfg b/setup.cfg
index 027c465..28affed 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -57,7 +57,7 @@ addopts =
 # wafo/stats/tests
 
 [pytest]
-doctest_optionflags = NORWALIZE_WHITESPACE ELLIPSIS
+doctest_optionflags = NORMALIZE_WHITESPACE ELLIPSIS
 # Options for py.test:
 # Specify command line options as you would do when invoking py.test directly.
 # e.g. --cov-report html (or xml) for html/xml output or --junitxml junit.xml