diff --git a/src/cmd/link/internal/ld/go.go b/src/cmd/link/internal/ld/go.go
index 171f3cef11..9dfb0f756e 100644
--- a/src/cmd/link/internal/ld/go.go
+++ b/src/cmd/link/internal/ld/go.go
@@ -7,7 +7,6 @@
 package ld
 
 import (
-	"bytes"
 	"cmd/internal/bio"
 	"cmd/internal/obj"
 	"cmd/internal/objabi"
@@ -383,7 +382,7 @@ func Adddynsym(ldr *loader.Loader, target *Target, syms *ArchSyms, s loader.Sym)
 }
 
 func fieldtrack(arch *sys.Arch, l *loader.Loader) {
-	var buf bytes.Buffer
+	var buf strings.Builder
 	for i := loader.Sym(1); i < loader.Sym(l.NSym()); i++ {
 		if name := l.SymName(i); strings.HasPrefix(name, "go:track.") {
 			if l.AttrReachable(i) {