diff --git a/wmi/perflib/nametable.go b/wmi/perflib/nametable.go
index cdeceaeb..8b7afa48 100644
--- a/wmi/perflib/nametable.go
+++ b/wmi/perflib/nametable.go
@@ -6,11 +6,6 @@ import (
 	"strconv"
 )
 
-type nameTableLookuper interface {
-	LookupName() string
-	LookupHelp() string
-}
-
 func (p *perfObjectType) LookupName() string {
 	return CounterNameTable.LookupString(p.ObjectNameTitleIndex)
 }