diff --git a/hugr-core/src/types.rs b/hugr-core/src/types.rs
index 982969357..be45c1985 100644
--- a/hugr-core/src/types.rs
+++ b/hugr-core/src/types.rs
@@ -16,14 +16,18 @@ use crate::types::type_param::check_type_arg;
 use crate::utils::display_list_with_separator;
 pub use check::SumTypeError;
 pub use custom::CustomType;
-pub(crate) use poly_func::PolyFuncTypeBase;
 pub use poly_func::{PolyFuncType, PolyFuncTypeRV};
-pub(crate) use signature::FuncTypeBase;
 pub use signature::{FuncValueType, Signature};
 use smol_str::SmolStr;
 pub use type_param::TypeArg;
 pub use type_row::{TypeRow, TypeRowRV};
 
+// Unused in --no-features
+#[allow(unused_imports)]
+pub(crate) use poly_func::PolyFuncTypeBase;
+#[allow(unused_imports)]
+pub(crate) use signature::FuncTypeBase;
+
 use itertools::FoldWhile::{Continue, Done};
 use itertools::{repeat_n, Itertools};
 #[cfg(test)]