diff --git a/proc.c b/proc.c
index 94722dd8e2..4af42c04bd 100644
--- a/proc.c
+++ b/proc.c
@@ -1817,7 +1817,6 @@ rb_method_name_error(VALUE klass, VALUE str)
 	  case T_MODULE:
 	  case T_CLASS:
 	    c = obj;
-	    s = MSG("");
             break;
           default:
 	    break;