diff --git a/pyproject.toml b/pyproject.toml
index 952f137..dcdf4ba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,6 +5,7 @@ description = "A Rich-compatible library for writing pixel images and ASCII art
 authors = ["Darren Burns <darrenb900@gmail.com>"]
 readme = "README.md"
 packages = [{ include = "rich_pixels" }]
+include = ["rich_pixels/py.typed"]
 
 [tool.poetry.dependencies]
 python = "^3.7"
diff --git a/rich_pixels/py.typed b/rich_pixels/py.typed
new file mode 100644
index 0000000..e69de29