diff --git a/pyproject.toml b/pyproject.toml
index 3c328d9..9f23e46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ whipper = "whipper.command.main:main"
 namespaces = false
 
 [tool.setuptools.package-data]
-"whipper" = ["test/*"]
+"whipper" = ["test/**"]
 
 [tool.setuptools_scm]
 # Empty, but needed to enable SCM