diff --git a/src/jrd/recsrc/WindowedStream.cpp b/src/jrd/recsrc/WindowedStream.cpp
index 51a159e452..ce795f76bc 100644
--- a/src/jrd/recsrc/WindowedStream.cpp
+++ b/src/jrd/recsrc/WindowedStream.cpp
@@ -154,8 +154,11 @@ namespace
 
 	void BufferedStreamWindow::print(thread_db* tdbb, string& plan, bool detailed, unsigned level, bool recurse) const
 	{
-		plan += printIndent(++level) + "Window Buffer";
-		printOptInfo(plan);
+		if (detailed)
+		{
+			plan += printIndent(++level) + "Window Buffer";
+			printOptInfo(plan);
+		}
 
 		if (recurse)
 			m_next->print(tdbb, plan, detailed, level, recurse);
@@ -408,8 +411,11 @@ void WindowedStream::getChildren(Array<const RecordSource*>& children) const
 
 void WindowedStream::print(thread_db* tdbb, string& plan, bool detailed, unsigned level, bool recurse) const
 {
-	plan += printIndent(++level) + "Window";
-	printOptInfo(plan);
+	if (detailed)
+	{
+		plan += printIndent(++level) + "Window";
+		printOptInfo(plan);
+	}
 
 	if (recurse)
 		m_joinedStream->print(tdbb, plan, detailed, level, recurse);