diff --git a/exp/mdbxpool/put.go b/exp/mdbxpool/put.go
index 608917b..9c0a655 100644
--- a/exp/mdbxpool/put.go
+++ b/exp/mdbxpool/put.go
@@ -1,3 +1,4 @@
+//go:build !race
 // +build !race
 
 package mdbxpool