diff --git a/pyproject.toml b/pyproject.toml
index a9e3dac09..afbbd3c48 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ build-backend = "setuptools.build_meta"
 [tool.setuptools]
 include-package-data = true
 zip-safe = false
-packages = ["pyboy"]
+packages = ["pyboy", "pyboy.api", "pyboy.core", "pyboy.core.cartridge", "pyboy.logging", "pyboy.plugins"]
 
 [tool.setuptools.package-data]
 "*" = [