diff --git a/src/cmd/internal/goobj/goobj_test.go b/src/cmd/internal/goobj/goobj_test.go
index 9f827c6a32..4a4d35a413 100644
--- a/src/cmd/internal/goobj/goobj_test.go
+++ b/src/cmd/internal/goobj/goobj_test.go
@@ -17,7 +17,6 @@ import (
 	"os/exec"
 	"path/filepath"
 	"runtime"
-	"strings"
 	"testing"
 )
 
@@ -151,14 +150,6 @@ func buildGoobj() error {
 	return nil
 }
 
-// Check that a symbol has a given name, accepting both
-// new and old objects.
-// TODO(go115newobj): remove.
-func matchSymName(symname, want string) bool {
-	return symname == want ||
-		strings.HasPrefix(symname, want+"#") // new style, with index
-}
-
 func TestParseGoobj(t *testing.T) {
 	path := go1obj
 
@@ -177,7 +168,7 @@ func TestParseGoobj(t *testing.T) {
 	}
 	var found bool
 	for _, s := range p.Syms {
-		if matchSymName(s.Name, "mypkg.go1") {
+		if s.Name == "mypkg.go1" {
 			found = true
 			break
 		}
@@ -206,10 +197,10 @@ func TestParseArchive(t *testing.T) {
 	var found1 bool
 	var found2 bool
 	for _, s := range p.Syms {
-		if matchSymName(s.Name, "mypkg.go1") {
+		if s.Name == "mypkg.go1" {
 			found1 = true
 		}
-		if matchSymName(s.Name, "mypkg.go2") {
+		if s.Name == "mypkg.go2" {
 			found2 = true
 		}
 	}
@@ -242,10 +233,10 @@ func TestParseCGOArchive(t *testing.T) {
 	var found1 bool
 	var found2 bool
 	for _, s := range p.Syms {
-		if matchSymName(s.Name, "mycgo.go1") {
+		if s.Name == "mycgo.go1" {
 			found1 = true
 		}
-		if matchSymName(s.Name, "mycgo.go2") {
+		if s.Name == "mycgo.go2" {
 			found2 = true
 		}
 	}
diff --git a/src/cmd/internal/goobj/readnew.go b/src/cmd/internal/goobj/readnew.go
index 3e710576b6..0b89034287 100644
--- a/src/cmd/internal/goobj/readnew.go
+++ b/src/cmd/internal/goobj/readnew.go
@@ -58,10 +58,8 @@ func (r *objReader) readNew() {
 		case goobj2.PkgIdxSelf:
 			i = int(s.SymIdx)
 		default:
-			// Symbol from other package, referenced by index.
-			// We don't know the name. Use index.
 			pkg := pkglist[p]
-			return SymID{fmt.Sprintf("%s.#%d", pkg, s.SymIdx), 0}
+			return SymID{fmt.Sprintf("%s.<#%d>", pkg, s.SymIdx), 0}
 		}
 		sym := rr.Sym(i)
 		return SymID{sym.Name(rr), abiToVer(sym.ABI())}
@@ -72,7 +70,6 @@ func (r *objReader) readNew() {
 	// Symbols
 	pcdataBase := start + rr.PcdataBase()
 	n := rr.NSym() + rr.NNonpkgdef() + rr.NNonpkgref()
-	npkgdef := rr.NSym()
 	ndef := rr.NSym() + rr.NNonpkgdef()
 	for i := 0; i < n; i++ {
 		osym := rr.Sym(i)
@@ -83,10 +80,6 @@ func (r *objReader) readNew() {
 		// prefix for the package in which the object file has been found.
 		// Expand it.
 		name := strings.ReplaceAll(osym.Name(rr), `"".`, r.pkgprefix)
-		if i < npkgdef {
-			// Indexed symbol. Attach index to the name.
-			name += fmt.Sprintf("#%d", i)
-		}
 		symID := SymID{Name: name, Version: abiToVer(osym.ABI())}
 		r.p.SymRefs = append(r.p.SymRefs, symID)
 
diff --git a/src/cmd/nm/nm_test.go b/src/cmd/nm/nm_test.go
index a49423b212..5d7fff0f99 100644
--- a/src/cmd/nm/nm_test.go
+++ b/src/cmd/nm/nm_test.go
@@ -315,7 +315,7 @@ func testGoLib(t *testing.T, iscgo bool) {
 		}
 		for i := range syms {
 			sym := &syms[i]
-			if sym.Type == typ && matchSymName(name, sym.Name) && sym.CSym == csym {
+			if sym.Type == typ && sym.Name == name && sym.CSym == csym {
 				if sym.Found {
 					t.Fatalf("duplicate symbol %s %s", sym.Type, sym.Name)
 				}
@@ -334,14 +334,6 @@ func TestGoLib(t *testing.T) {
 	testGoLib(t, false)
 }
 
-// Check that a symbol has a given name, accepting both
-// new and old objects.
-// TODO(go115newobj): remove.
-func matchSymName(symname, want string) bool {
-	return symname == want ||
-		strings.HasPrefix(symname, want+"#") // new style, with index
-}
-
 const testexec = `
 package main
 
diff --git a/src/cmd/objdump/objdump_test.go b/src/cmd/objdump/objdump_test.go
index 814cbf4564..c974d6707b 100644
--- a/src/cmd/objdump/objdump_test.go
+++ b/src/cmd/objdump/objdump_test.go
@@ -14,7 +14,6 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"regexp"
 	"runtime"
 	"strings"
 	"testing"
@@ -285,11 +284,9 @@ func TestDisasmGoobj(t *testing.T) {
 	if err != nil {
 		t.Fatalf("go tool compile fmthello.go: %v\n%s", err, out)
 	}
-
-	// TODO(go115newobj): drop old object file support.
 	need := []string{
-		`main(#\d+)?\(SB\)`, // either new or old object file
-		`fmthello\.go:6`,
+		"main(SB)",
+		"fmthello.go:6",
 	}
 
 	args = []string{
@@ -305,9 +302,8 @@ func TestDisasmGoobj(t *testing.T) {
 	text := string(out)
 	ok := true
 	for _, s := range need {
-		re := regexp.MustCompile(s)
-		if !re.MatchString(text) {
-			t.Errorf("disassembly missing %q", s)
+		if !strings.Contains(text, s) {
+			t.Errorf("disassembly missing '%s'", s)
 			ok = false
 		}
 	}