diff --git a/src/lib.rs b/src/lib.rs
index 7a7110031be..57c66e053f4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -296,7 +296,9 @@
 pub use crate::class::*;
 pub use crate::conversion::{AsPyPointer, FromPyObject, FromPyPointer, IntoPy, ToPyObject};
 pub use crate::conversion::{PyTryFrom, PyTryInto};
-pub use crate::err::{PyDowncastError, PyErr, PyErrArguments, PyResult};
+pub use crate::err::{
+    PyDowncastError, PyDowncastError2, PyDowncastIntoError, PyErr, PyErrArguments, PyResult,
+};
 pub use crate::gil::GILPool;
 #[cfg(not(PyPy))]
 pub use crate::gil::{prepare_freethreaded_python, with_embedded_python_interpreter};