diff --git a/mdbx/env.go b/mdbx/env.go
index 189aba7..df8d93d 100644
--- a/mdbx/env.go
+++ b/mdbx/env.go
@@ -161,7 +161,7 @@ func NewEnv(label Label) (*Env, error) {
 func (env *Env) Open(path string, flags uint, mode os.FileMode) error {
 	cpath := C.CString(path)
 	defer C.free(unsafe.Pointer(cpath))
-	ret := C.mdbx_env_open(env._env, cpath, C.MDBX_env_flags_t(NoTLS|flags), C.mdbx_mode_t(mode))
+	ret := C.mdbx_env_open(env._env, cpath, C.MDBX_env_flags_t(NoStickyThreads|flags), C.mdbx_mode_t(mode))
 	return operrno("mdbx_env_open", ret)
 }
 func (env *Env) Label() Label { return env.label }
diff --git a/mdbx/env_test.go b/mdbx/env_test.go
index 71ff75f..d770383 100644
--- a/mdbx/env_test.go
+++ b/mdbx/env_test.go
@@ -142,8 +142,8 @@ func TestEnv_Flags(t *testing.T) {
 		return
 	}
 
-	if flags&NoTLS == 0 {
-		t.Errorf("NoTLS is not set")
+	if flags&NoStickyThreads == 0 {
+		t.Errorf("NoStickyThreads is not set")
 	}
 
 	err = env.SetFlags(SafeNoSync)