diff --git a/test/ruby/test_method.rb b/test/ruby/test_method.rb
index 9fc2ab10eb..c8b5ff12d3 100644
--- a/test/ruby/test_method.rb
+++ b/test/ruby/test_method.rb
@@ -864,4 +864,17 @@ class TestMethod < Test::Unit::TestCase
     n = 10_000_000
     assert_equal n  , rest_parameter(*(1..n)).size, '[Feature #10440]'
   end
+
+  def test_insecure_method
+    m = "\u{5371 967a}"
+    c = Class.new do
+      proc {$SAFE=3;def foo;end}.call
+      alias_method m, "foo"
+      eval "def bar; #{m}; end"
+    end
+    obj = c.new
+    assert_raise_with_message(SecurityError, /#{m}/) do
+      obj.bar
+    end
+  end
 end
diff --git a/vm_eval.c b/vm_eval.c
index 0f2b19053d..1a6f49b08c 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -583,8 +583,8 @@ rb_method_call_status(rb_thread_t *th, const rb_method_entry_t *me, call_type sc
 	    }
 
 	    if (NOEX_SAFE(noex) > th->safe_level) {
-		rb_raise(rb_eSecurityError, "calling insecure method: %s",
-			 rb_id2name(me->called_id));
+		rb_raise(rb_eSecurityError, "calling insecure method: %"PRIsVALUE,
+			 rb_id2str(me->called_id));
 	    }
 	}
     }
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index e442383a04..7bb0aadaa8 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -1779,7 +1779,7 @@ vm_call_method(rb_thread_t *th, rb_control_frame_t *cfp, rb_call_info_t *ci)
 		}
 	    }
 	    else if ((noex_safe = NOEX_SAFE(ci->me->flag)) > th->safe_level && (noex_safe > 2)) {
-		rb_raise(rb_eSecurityError, "calling insecure method: %s", rb_id2name(ci->mid));
+		rb_raise(rb_eSecurityError, "calling insecure method: %"PRIsVALUE, rb_id2str(ci->mid));
 	    }
 	    else {
 		goto normal_method_dispatch;