diff --git a/dbms/src/Formats/FormatFactory.cpp b/dbms/src/Formats/FormatFactory.cpp
index a5e0a56040d..b883e42e8ad 100644
--- a/dbms/src/Formats/FormatFactory.cpp
+++ b/dbms/src/Formats/FormatFactory.cpp
@@ -7,7 +7,6 @@
 #include <DataStreams/ParallelParsingBlockInputStream.h>
 #include <Formats/FormatSettings.h>
 #include <Formats/FormatFactory.h>
-#include <DataStreams/UnionBlockInputStream.h>
 #include <Processors/Formats/IRowInputFormat.h>
 #include <Processors/Formats/InputStreamFromInputFormat.h>
 #include <Processors/Formats/OutputStreamToOutputFormat.h>