diff --git a/lib/redmine/wiki_formatting/textile/redcloth3.rb b/lib/redmine/wiki_formatting/textile/redcloth3.rb
index 6ffd7c78c..01f1bd458 100644
--- a/lib/redmine/wiki_formatting/textile/redcloth3.rb
+++ b/lib/redmine/wiki_formatting/textile/redcloth3.rb
@@ -1049,7 +1049,7 @@ class RedCloth3 < String
     end
     
     OFFTAGS = /(code|pre|kbd|notextile)/
-    OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }\W|\Z)/mi
+    OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }\b>)|(<#{ OFFTAGS }\b[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }\b\W|\Z)/mi
     OFFTAG_OPEN = /<#{ OFFTAGS }/
     OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/
     HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m
diff --git a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
index a4c8167d1..4bbef9996 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -605,6 +605,22 @@ EXPECTED
     assert_nothing_raised { to_html(" \v") }
   end
 
+  def test_should_not_handle_as_preformatted_text_tags_that_starts_with_pre
+    text = <<-STR
+<pree>
+  This is some text
+</pree>
+STR
+
+    expected = <<-EXPECTED
+<p>&lt;pree&gt;<br />
+  This is some text<br />
+&lt;/pree&gt;</p>
+EXPECTED
+
+    assert_equal expected.gsub(%r{[\r\n\t]}, ''), to_html(text).gsub(%r{[\r\n\t]}, '')
+  end
+
   private
 
   def assert_html_output(to_test, expect_paragraph = true)