diff --git a/lib/redmine/wiki_formatting/textile/formatter.rb b/lib/redmine/wiki_formatting/textile/formatter.rb
index b06ee64e7..8fc8e3448 100644
--- a/lib/redmine/wiki_formatting/textile/formatter.rb
+++ b/lib/redmine/wiki_formatting/textile/formatter.rb
@@ -69,7 +69,7 @@ module Redmine
           l = 1
           started = false
           ended = false
-          text.scan(/(((?:.*?)(\A|\r?\n\s*\r?\n))(h(\d+)(#{A}#{C})\.(?::(\S+))? (.*?)$)|.*)/m).each do |all, content, lf, heading, level|
+          text.scan(/(((?:.*?)(\A|\r?\n\s*\r?\n))(h(\d+)(#{A}#{C})\.(?::(\S+))?[ \t](.*?)$)|.*)/m).each do |all, content, lf, heading, level|
             if heading.nil?
               if ended
                 after << all
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 26f9993d0..88242f54f 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -419,6 +419,20 @@ STR
     end
   end
 
+  def test_get_section_should_support_headings_starting_with_a_tab
+    text = <<-STR
+h1.\tHeading 1
+
+Content 1
+
+h1. Heading 2
+
+Content 2
+STR
+
+    assert_match /\Ah1.\tHeading 1\s+Content 1\z/, @formatter.new(text).get_section(1).first
+  end
+
   private
 
   def assert_html_output(to_test, expect_paragraph = true)