diff --git a/ChangeLog b/ChangeLog
index 24008a949b..fe96d429fb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Dec  4 04:20:34 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (ruby_require_internal): ignore error detail, just return
+	  an error.
+
 Wed Dec  3 17:13:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* encoding.c (load_encoding): use rb_require_internal instead of
diff --git a/load.c b/load.c
index 4f1a0c1a78..65017c9895 100644
--- a/load.c
+++ b/load.c
@@ -1040,7 +1040,10 @@ ruby_require_internal(const char *fname, unsigned int len)
 {
     struct RString fake;
     VALUE str = rb_setup_fake_str(&fake, fname, len, 0);
-    return rb_require_internal(str, 0);
+    int result = rb_require_internal(str, 0);
+    if (result > 1) result = -1;
+    rb_set_errinfo(Qnil);
+    return result;
 }
 
 VALUE