diff --git a/util/dns/cache_test.go b/util/dns/cache_test.go
index 1c939145..392f82d4 100644
--- a/util/dns/cache_test.go
+++ b/util/dns/cache_test.go
@@ -8,15 +8,13 @@ import (
 func TestCache(t *testing.T) {
 	net.DefaultResolver = NewNetResolver(PreferIPV4(true))
 
-	addrs, err := net.LookupHost("unistack.org")
+	_, err := net.LookupHost("unistack.org")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	addrs, err = net.LookupHost("unistack.org")
+	_, err = net.LookupHost("unistack.org")
 	if err != nil {
 		t.Fatal(err)
 	}
-
-	_ = addrs
 }