diff --git a/pyproject.toml b/pyproject.toml
index c5a4d6c..7abac1c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,6 +89,7 @@ explicit_package_bases = true
 source = ["asphalt.sqlalchemy"]
 relative_files = true
 branch = true
+mypy_path = ["src", "tests", "examples"]
 
 [tool.coverage.report]
 show_missing = true