2 files changed, 7 insertions, 1 deletions
diff --git a/re.c b/re.c
index d0aa2a792e..55eea5a81e 100644
--- a/re.c
+++ b/re.c
@@ -606,7 +606,7 @@ rb_reg_to_s(VALUE re)
 
 	    ++ptr;
 	    len -= 2;
-            err = onig_new(&rp, ptr, ptr + len, ONIG_OPTION_DEFAULT,
+            err = onig_new(&rp, ptr, ptr + len, options,
 			   enc, OnigDefaultSyntax, NULL);
 	    onig_free(rp);
 	    ruby_verbose = verbose;
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 2c4c9709f7..549b21c84e 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -74,6 +74,12 @@ class TestRegexp < Test::Unit::TestCase
     end
   end
 
+  def test_to_s_extended_subexp
+    re = /#\g#{"\n"}/x
+    re = /#{re}/
+    assert_warn('', '[ruby-core:82328] [Bug #13798]') {re.to_s}
+  end
+
   def test_union
     assert_equal :ok, begin
       Regexp.union(