diff --git a/setup.cfg b/setup.cfg
index 7ec1212..70ae40c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ napari.manifest =
     napari-nyxus = napari_nyxus:napari.yaml
 
 [options.package_data]
-* = *.yml
+* = *.yaml
 
 [versioneer]
 # Automatic version numbering scheme