diff --git a/src/runtime/iface.go b/src/runtime/iface.go
index d5a181cae17e76..4563809a9dde76 100644
--- a/src/runtime/iface.go
+++ b/src/runtime/iface.go
@@ -225,13 +225,11 @@ imethods:
 					pkgPath = rtyp.nameOff(x.PkgPath).Name()
 				}
 				if tname.IsExported() || pkgPath == ipkg {
-					if m != nil {
-						ifn := rtyp.textOff(t.Ifn)
-						if k == 0 {
-							fun0 = ifn // we'll set m.fun[0] at the end
-						} else {
-							methods[k] = ifn
-						}
+					ifn := rtyp.textOff(t.Ifn)
+					if k == 0 {
+						fun0 = ifn // we'll set m.fun[0] at the end
+					} else {
+						methods[k] = ifn
 					}
 					continue imethods
 				}