diff --git a/.golangci.toml b/.golangci.toml
index 539fd41..36fca87 100644
--- a/.golangci.toml
+++ b/.golangci.toml
@@ -32,6 +32,8 @@
     "gochecknoinits",
     "gomnd",
     "wsl",
+    "goerr113",
+    "testpackage",
   ]
 
 [issues]
diff --git a/app.go b/app.go
index ee07eac..0b47c72 100644
--- a/app.go
+++ b/app.go
@@ -19,7 +19,7 @@ import (
 	"github.com/gorilla/websocket"
 )
 
-// Units
+// Units.
 const (
 	_        = iota
 	KB int64 = 1 << (10 * iota)