diff --git a/dbg/pprof_cgo.go b/dbg/pprof_cgo.go
index 171c869..409c34b 100644
--- a/dbg/pprof_cgo.go
+++ b/dbg/pprof_cgo.go
@@ -1,5 +1,4 @@
 //go:build debug
-// +build debug
 
 package dbg
 
diff --git a/exp/mdbxpool/put.go b/exp/mdbxpool/put.go
index 9c0a655..0d4552a 100644
--- a/exp/mdbxpool/put.go
+++ b/exp/mdbxpool/put.go
@@ -1,5 +1,4 @@
 //go:build !race
-// +build !race
 
 package mdbxpool
 
diff --git a/exp/mdbxpool/putrace.go b/exp/mdbxpool/putrace.go
index 3e124e9..75da5da 100644
--- a/exp/mdbxpool/putrace.go
+++ b/exp/mdbxpool/putrace.go
@@ -1,5 +1,4 @@
 //go:build race
-// +build race
 
 package mdbxpool
 
diff --git a/mdbx/env_not_win.go b/mdbx/env_not_win.go
index 3c025c8..9aae548 100644
--- a/mdbx/env_not_win.go
+++ b/mdbx/env_not_win.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package mdbx
 
diff --git a/mdbx/error_unix.go b/mdbx/error_unix.go
index 325280d..ac9d70c 100644
--- a/mdbx/error_unix.go
+++ b/mdbx/error_unix.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package mdbx