diff --git a/src/debug/plan9obj/file.go b/src/debug/plan9obj/file.go
index c78e35d000..314608da61 100644
--- a/src/debug/plan9obj/file.go
+++ b/src/debug/plan9obj/file.go
@@ -274,7 +274,7 @@ func newTable(symtab []byte, ptrsz int) ([]Sym, error) {
 		ts.Value = s.value
 		switch s.typ {
 		default:
-			ts.Name = string(s.name[:])
+			ts.Name = string(s.name)
 		case 'z', 'Z':
 			for i := 0; i < len(s.name); i += 2 {
 				eltIdx := binary.BigEndian.Uint16(s.name[i : i+2])