diff --git a/.golangci.yml b/.golangci.yml
index 824c997..6ceb3f9 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -15,6 +15,7 @@ linters-settings:
           - github.com/DimVlas/otus_hw/hw09_struct_validator/rules
           - github.com/stretchr/testify/require
           - github.com/stretchr/testify/assert
+          - github.com/mailru/easyjson
           - $gostd
   exhaustive:
     explicit-exhaustive-switch: true
diff --git a/hw10_program_optimization/stats.go b/hw10_program_optimization/stats.go
index 014c7d2..860ae80 100644
--- a/hw10_program_optimization/stats.go
+++ b/hw10_program_optimization/stats.go
@@ -2,6 +2,7 @@ package hw10programoptimization
 
 import (
 	"bufio"
+	"errors"
 	"io"
 	"strings"
 
@@ -33,10 +34,9 @@ func domainsStat(r io.Reader, domain string) (DomainStat, error) {
 	for {
 		line, err := rd.ReadBytes('\n')
 		if err != nil {
-			switch err {
-			case io.EOF:
+			if !errors.Is(err, io.EOF) {
 				br = true
-			default:
+			} else {
 				return nil, err
 			}
 		}