diff --git a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/iam/common/generic_provider.h b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/iam/common/generic_provider.h
index 77ee7a61822c..9ea0ead0126a 100644
--- a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/iam/common/generic_provider.h
+++ b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/iam/common/generic_provider.h
@@ -127,6 +127,8 @@ class TGrpcIamCredentialsProvider : public ICredentialsProvider {
                 }
                 NeedStop_ = true;
             }
+            Stub_.reset();
+            Channel_.reset();
         }
 
     private: