diff --git a/build.py b/build_ext.py
similarity index 100%
rename from build.py
rename to build_ext.py
diff --git a/pyproject.toml b/pyproject.toml
index 216e4db..ecae624 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ classifiers = [
     "Operating System :: OS Independent",
     "Topic :: Software Development :: Libraries",
 ]
-build = "build.py"
+build = "build_ext.py"
 packages = [
     { include = "dbus_fast", from = "src" },
 ]