diff --git a/src/cmd/compile/internal/gc/main.go b/src/cmd/compile/internal/gc/main.go
index b29f7d10ae3..e7011646c3e 100644
--- a/src/cmd/compile/internal/gc/main.go
+++ b/src/cmd/compile/internal/gc/main.go
@@ -16,6 +16,7 @@ import (
 	"log"
 	"os"
 	"path"
+	"runtime"
 	"strconv"
 	"strings"
 )
@@ -571,7 +572,7 @@ func isDriveLetter(b byte) bool {
 // is this path a local name?  begins with ./ or ../ or /
 func islocalname(name string) bool {
 	return strings.HasPrefix(name, "/") ||
-		Ctxt.Windows != 0 && len(name) >= 3 && isDriveLetter(name[0]) && name[1] == ':' && name[2] == '/' ||
+		runtime.GOOS == "windows" && len(name) >= 3 && isDriveLetter(name[0]) && name[1] == ':' && name[2] == '/' ||
 		strings.HasPrefix(name, "./") || name == "." ||
 		strings.HasPrefix(name, "../") || name == ".."
 }
@@ -893,7 +894,7 @@ func mkpackage(pkgname string) {
 		if i := strings.LastIndex(p, "/"); i >= 0 {
 			p = p[i+1:]
 		}
-		if Ctxt.Windows != 0 {
+		if runtime.GOOS == "windows" {
 			if i := strings.LastIndex(p, `\`); i >= 0 {
 				p = p[i+1:]
 			}
diff --git a/src/cmd/internal/obj/link.go b/src/cmd/internal/obj/link.go
index 8cae1255cd0..e2993630a9a 100644
--- a/src/cmd/internal/obj/link.go
+++ b/src/cmd/internal/obj/link.go
@@ -618,7 +618,6 @@ type Link struct {
 	Flag_optimize bool
 	Bso           *Biobuf
 	Pathname      string
-	Windows       int32
 	Goroot        string
 	Goroot_final  string
 	Hash          map[SymVer]*LSym
diff --git a/src/cmd/internal/obj/sym.go b/src/cmd/internal/obj/sym.go
index 41623266f59..a723eb4689d 100644
--- a/src/cmd/internal/obj/sym.go
+++ b/src/cmd/internal/obj/sym.go
@@ -35,7 +35,6 @@ import (
 	"log"
 	"os"
 	"path/filepath"
-	"runtime"
 	"strconv"
 )
 
@@ -83,10 +82,6 @@ func Linknew(arch *LinkArch) *Link {
 	ctxt.Version = HistVersion
 	ctxt.Goroot = Getgoroot()
 	ctxt.Goroot_final = os.Getenv("GOROOT_FINAL")
-	if runtime.GOOS == "windows" {
-		// TODO(rsc): Remove ctxt.Windows and let callers use runtime.GOOS.
-		ctxt.Windows = 1
-	}
 
 	var buf string
 	buf, _ = os.Getwd()