diff --git a/test-crates/uniffi-pure-proc-macro/pyproject.toml b/test-crates/uniffi-pure-proc-macro/pyproject.toml
index 549f0616c..07dd28cde 100644
--- a/test-crates/uniffi-pure-proc-macro/pyproject.toml
+++ b/test-crates/uniffi-pure-proc-macro/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
 requires = ["maturin>=1.0,<2.0"]
-build-backend = "maturin"
\ No newline at end of file
+build-backend = "maturin"