diff --git a/dbms/src/Dictionaries/ClickHouseDictionarySource.cpp b/dbms/src/Dictionaries/ClickHouseDictionarySource.cpp
index 0bad0edc727..cc0e3e252e3 100644
--- a/dbms/src/Dictionaries/ClickHouseDictionarySource.cpp
+++ b/dbms/src/Dictionaries/ClickHouseDictionarySource.cpp
@@ -74,7 +74,8 @@ ClickHouseDictionarySource::ClickHouseDictionarySource(
     , pool{is_local ? nullptr : createPool(host, port, secure, db, user, password, context)}
     , load_all_query{query_builder.composeLoadAllQuery()}
 {
-    context.setUser(user, password, {}, {});
+    /// We should set user info even for the case when the dictionary is loaded in-process (without TCP communication).
+    context.setUser(user, password, Poco::Net::SocketAddress("127.0.0.1"), {});
 }