diff --git a/activesupport/test/xml_mini/libxml_engine_test.rb b/activesupport/test/xml_mini/libxml_engine_test.rb
index ab029e3910..a8df2e1f7b 100644
--- a/activesupport/test/xml_mini/libxml_engine_test.rb
+++ b/activesupport/test/xml_mini/libxml_engine_test.rb
@@ -195,6 +195,7 @@ class LibxmlEngineTest < ActiveSupport::TestCase
   private
     def assert_equal_rexml(xml)
       parsed_xml = XmlMini.parse(xml)
+      xml.rewind if xml.respond_to?(:rewind)
       hash = XmlMini.with_backend('REXML') { XmlMini.parse(xml) }
       assert_equal(hash, parsed_xml)
     end
diff --git a/activesupport/test/xml_mini/libxmlsax_engine_test.rb b/activesupport/test/xml_mini/libxmlsax_engine_test.rb
index 010aea95d7..d6d90639e2 100644
--- a/activesupport/test/xml_mini/libxmlsax_engine_test.rb
+++ b/activesupport/test/xml_mini/libxmlsax_engine_test.rb
@@ -186,6 +186,7 @@ class LibXMLSAXEngineTest < ActiveSupport::TestCase
   private
     def assert_equal_rexml(xml)
       parsed_xml = XmlMini.parse(xml)
+      xml.rewind if xml.respond_to?(:rewind)
       hash = XmlMini.with_backend('REXML') { XmlMini.parse(xml) }
       assert_equal(hash, parsed_xml)
     end
diff --git a/activesupport/test/xml_mini/nokogiri_engine_test.rb b/activesupport/test/xml_mini/nokogiri_engine_test.rb
index eb1b0b84b4..2e962576b5 100644
--- a/activesupport/test/xml_mini/nokogiri_engine_test.rb
+++ b/activesupport/test/xml_mini/nokogiri_engine_test.rb
@@ -208,6 +208,7 @@ class NokogiriEngineTest < ActiveSupport::TestCase
   private
     def assert_equal_rexml(xml)
       parsed_xml = XmlMini.parse(xml)
+      xml.rewind if xml.respond_to?(:rewind)
       hash = XmlMini.with_backend('REXML') { XmlMini.parse(xml) }
       assert_equal(hash, parsed_xml)
     end
diff --git a/activesupport/test/xml_mini/nokogirisax_engine_test.rb b/activesupport/test/xml_mini/nokogirisax_engine_test.rb
index 0719854e3a..4f078f31e0 100644
--- a/activesupport/test/xml_mini/nokogirisax_engine_test.rb
+++ b/activesupport/test/xml_mini/nokogirisax_engine_test.rb
@@ -209,6 +209,7 @@ class NokogiriSAXEngineTest < ActiveSupport::TestCase
   private
     def assert_equal_rexml(xml)
       parsed_xml = XmlMini.parse(xml)
+      xml.rewind if xml.respond_to?(:rewind)
       hash = XmlMini.with_backend('REXML') { XmlMini.parse(xml) }
       assert_equal(hash, parsed_xml)
     end
diff --git a/activesupport/test/xml_mini/rexml_engine_test.rb b/activesupport/test/xml_mini/rexml_engine_test.rb
index 0f1187db57..0c1f11803c 100644
--- a/activesupport/test/xml_mini/rexml_engine_test.rb
+++ b/activesupport/test/xml_mini/rexml_engine_test.rb
@@ -30,6 +30,7 @@ class REXMLEngineTest < ActiveSupport::TestCase
   private
     def assert_equal_rexml(xml)
       parsed_xml = XmlMini.parse(xml)
+      xml.rewind if xml.respond_to?(:rewind)
       hash = XmlMini.with_backend('REXML') { XmlMini.parse(xml) }
       assert_equal(hash, parsed_xml)
     end