diff --git a/parse.y b/parse.y
index dd34b4a9c4..92c0c875e6 100644
--- a/parse.y
+++ b/parse.y
@@ -8993,8 +8993,7 @@ new_regexp(struct parser_params *p, NODE *node, int options, const YYLTYPE *loc)
 		if (reg_fragment_check(p, tail, options) && prev && !NIL_P(prev->nd_lit)) {
 		    VALUE lit = prev == node ? prev->nd_lit : prev->nd_head->nd_lit;
 		    if (!literal_concat0(p, lit, tail)) {
-			node = 0;
-			break;
+			return NEW_NIL(loc); /* dummy node on error */
 		    }
 		    rb_str_resize(tail, 0);
 		    prev->nd_next = list->nd_next;
diff --git a/test/ruby/test_mixed_unicode_escapes.rb b/test/ruby/test_mixed_unicode_escapes.rb
index 09240d8ab2..f0b4cc691f 100644
--- a/test/ruby/test_mixed_unicode_escapes.rb
+++ b/test/ruby/test_mixed_unicode_escapes.rb
@@ -13,14 +13,18 @@ class TestMixedUnicodeEscape < Test::Unit::TestCase
     # 8-bit character escapes are okay.
     assert_equal("B\xFF", "\u0042\xFF")
 
-    # sjis mb chars mixed with Unicode shound not work
+    # sjis mb chars mixed with Unicode should not work
     assert_raise(SyntaxError) { eval %q("é�\u1234")}
     assert_raise(SyntaxError) { eval %q("\u{1234}é�")}
 
+    # also should not work for Regexp
+    assert_raise(SyntaxError) { eval %q(/#{"\u1234"}#{"é�"}/)}
+    assert_raise(RegexpError) { eval %q(/\u{1234}#{nil}é�/)}
+    assert_raise(RegexpError) { eval %q(/é�#{nil}\u1234/)}
+
     # String interpolation turns into an expression and we get
     # a different kind of error, but we still can't mix these
     assert_raise(Encoding::CompatibilityError) { eval %q("\u{1234}#{nil}é�")}
     assert_raise(Encoding::CompatibilityError) { eval %q("é�#{nil}\u1234")}
-
   end
 end