diff --git a/setup.cfg b/setup.cfg
index bd7f99d..492a050 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -188,7 +188,7 @@ commands =
 
 [testenv:pypi-upload]
 description = Upload wheel to PyPi
-platform = Linux
+platform = linux
 labels =
     release
 skip_install = true