diff --git a/pyproject.toml b/pyproject.toml
index 458227fd..1db70a8f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -75,8 +75,8 @@ Repository = "https://github.com/sainsburyWellcomeCentre/aeon_mecha"
 Documentation = "https://sainsburywellcomecentre.github.io/aeon_docs/"
 DataJoint = "https://docs.datajoint.org/"
 
-[tool.setuptools]
-packages = ["aeon"]
+[tool.setuptools.packages.find]
+where = ["aeon"]
 
 [tool.black]
 line-length = 108