diff --git a/Cargo.toml b/Cargo.toml
index b07a2b6c..05025015 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ rust_2018_idioms = "warn"
 single_use_lifetimes = "warn"
 unexpected_cfgs = { level = "warn", check-cfg = [
 ] }
+unnameable_types = "warn"
 unreachable_pub = "warn"
 unsafe_op_in_unsafe_fn = "warn"
 [workspace.lints.clippy]