diff --git a/aidial_client/__init__.py b/aidial_client/__init__.py
index 43f5f0b..194cd7c 100644
--- a/aidial_client/__init__.py
+++ b/aidial_client/__init__.py
@@ -6,6 +6,7 @@
     EtagMismatchError,
     InvalidDialURLError,
     InvalidRequestError,
+    NotDialURLError,
     ParsingDataError,
     ResourceNotFoundError,
 )
@@ -25,6 +26,7 @@
     "DialException",
     "InvalidDialURLError",
     "InvalidRequestError",
+    "NotDialURLError",
     "ParsingDataError",
     "EtagMismatchError",
     "ResourceNotFoundError",