diff --git a/src/Interpreters/RequiredSourceColumnsVisitor.cpp b/src/Interpreters/RequiredSourceColumnsVisitor.cpp
index 5a265b59414..54883043d30 100644
--- a/src/Interpreters/RequiredSourceColumnsVisitor.cpp
+++ b/src/Interpreters/RequiredSourceColumnsVisitor.cpp
@@ -123,8 +123,12 @@ void RequiredSourceColumnsMatcher::visit(const ASTSelectQuery & select, const AS
 
     std::vector<ASTPtr *> out;
     for (const auto & node : select.children)
-        if (node != select.select())
+    {
+        // We should not go into WITH statement because all needed aliases are already expanded to
+        // the right place after normalization. And it might contain unused unknown columns.
+        if (node != select.select() && node != select.with())
             Visitor(data).visit(node);
+    }
 
     /// revisit select_expression_list (with children) when all the aliases are set
     Visitor(data).visit(select.select());