diff --git a/lib/liquid/tokenizer.rb b/lib/liquid/tokenizer.rb
index c7f9a7b..d6aef88 100644
--- a/lib/liquid/tokenizer.rb
+++ b/lib/liquid/tokenizer.rb
@@ -66,9 +66,6 @@ module Liquid
           s = S_VAR
           output << current
           current = t
-        elsif t == T_VAR_OPEN && s == S_TAG
-          s = S_VAR
-          current += t
         elsif t == T_SIN_QUOT && s == S_TAG
           s = S_TAG_SIN
           current += t
diff --git a/test/integration/tags/assign_tag_test.rb b/test/integration/tags/assign_tag_test.rb
index 107f257..84e0c06 100644
--- a/test/integration/tags/assign_tag_test.rb
+++ b/test/integration/tags/assign_tag_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class AssignTagTest < Minitest::Test
@@ -14,5 +16,4 @@ class AssignTagTest < Minitest::Test
   def test_liquid_issue_701
     assert_template_result(" contents: _{% endraw %}_", "{% assign endraw = '{% endraw %}' %} contents: _{{endraw}}_")
   end
-
-end
\ No newline at end of file
+end