diff --git a/trezorlib/ckd_public.py b/trezorlib/ckd_public.py
new file mode 100644
index 000000000..bcb7f3f7e
--- /dev/null
+++ b/trezorlib/ckd_public.py
@@ -0,0 +1,5 @@
+import warnings
+
+warnings.warn("ckd_public module is deprecated and will be removed", DeprecationWarning)
+
+from .tests.support.ckd_public import *  # noqa