diff --git a/services/tunnelbroker/rust-notifications/rustfmt.toml b/services/tunnelbroker/rust-notifications/rustfmt.toml
new file mode 100644
--- /dev/null
+++ b/services/tunnelbroker/rust-notifications/rustfmt.toml
@@ -0,0 +1,2 @@
+tab_spaces = 2
+max_width = 80