diff --git a/setup.cfg b/setup.cfg
index ab6b2fb93..bf8d2c850 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -77,12 +77,12 @@ _pytest = py.typed
 pytest = py.typed
 
 [build_sphinx]
-source-dir = doc/en/
-build-dir = doc/build
+source_dir = doc/en/
+build_dir = doc/build
 all_files = 1
 
 [upload_sphinx]
-upload-dir = doc/en/build/html
+upload_dir = doc/en/build/html
 
 [check-manifest]
 ignore =