diff --git a/pkg/kubectl/util/slice/slice.go b/pkg/kubectl/util/slice/slice.go
index 6885c4888db..8130753c300 100644
--- a/pkg/kubectl/util/slice/slice.go
+++ b/pkg/kubectl/util/slice/slice.go
@@ -20,13 +20,5 @@ import (
 	"sort"
 )
 
-// Int64Slice attaches the methods of Interface to []int64,
-// sorting in increasing order.
-type Int64Slice []int64
-
-func (p Int64Slice) Len() int           { return len(p) }
-func (p Int64Slice) Less(i, j int) bool { return p[i] < p[j] }
-func (p Int64Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
-
 // Sorts []int64 in increasing order
-func SortInts64(a []int64) { sort.Sort(Int64Slice(a)) }
+func SortInts64(a []int64) { sort.Slice(a, func(i, j int) bool { return a[i] < a[j] }) }