diff --git a/src/jrd/opt.cpp b/src/jrd/opt.cpp
index d329dc78b9..cf574709ce 100644
--- a/src/jrd/opt.cpp
+++ b/src/jrd/opt.cpp
@@ -3576,7 +3576,7 @@ static void find_used_streams(const RecordSource* rsb, UCHAR* streams)
 			break;
 	}
 
-	if (rsb->rsb_next) {
+	if (!found && rsb->rsb_next) {
 		find_used_streams(rsb->rsb_next, streams);
 	}