diff --git a/.github/workflows/github-ci.yml b/.github/workflows/github-ci.yml
index c8066b3..b78e817 100644
--- a/.github/workflows/github-ci.yml
+++ b/.github/workflows/github-ci.yml
@@ -51,11 +51,23 @@ jobs:
         run: |
           pip install build
           python -m build
+          if [ $(grep -o "\.py" uc_micro_py.egg-info/SOURCES.txt | wc -l) -eq 14 ]; then
+              echo "Success build"
+          else
+              echo "Failed build"
+              exit 1
+          fi
       - name: Build package test (with tmp folder)
         run: |
           mkdir tmp
           pip install build
           python -m build
+          if [ $(grep -o "\.py" uc_micro_py.egg-info/SOURCES.txt | wc -l) -eq 14 ]; then
+              echo "Success build"
+          else
+              echo "Failed build"
+              exit 1
+          fi
 
   publish:
     name: Publish to PyPi
diff --git a/pyproject.toml b/pyproject.toml
index 60e63ee..782d532 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,8 +29,9 @@ dynamic = ["version"]
 [project.optional-dependencies]
 test = ["pytest", "coverage", "pytest-cov"]
 
-[tool.setuptools]
-packages = ["uc_micro"]
+[tool.setuptools.packages.find]
+include = ["uc_micro*"]
+namespaces = false
 
 [tool.setuptools.dynamic]
 version = { attr = "uc_micro.__version__" }