diff --git a/lib/linguist/heuristics.rb b/lib/linguist/heuristics.rb
index 0d0b8338..69dcb395 100644
--- a/lib/linguist/heuristics.rb
+++ b/lib/linguist/heuristics.rb
@@ -165,5 +165,13 @@ module Linguist
         Language["text"]
       end
     end
+
+    disambiguate "TypeScript", "XML" do |data|
+      if data.include?("<TS ")
+        Language["XML"]
+      else
+        Language["TypeScript"]
+      end
+    end
   end
 end
diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 09144d98..cb7cf622 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3066,6 +3066,7 @@ XML:
   - .tmSnippet
   - .tmTheme
   - .tml
+  - .ts
   - .ui
   - .urdf
   - .vbproj
diff --git a/samples/XML/pt_BR.ts b/samples/XML/pt_BR.ts
new file mode 100644
index 00000000..bfaf0015
--- /dev/null
+++ b/samples/XML/pt_BR.ts
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0" language="pt_BR">
+<context>
+    <name>MainWindow</name>
+    <message>
+        <location filename="../forms/mainwindow.ui" line="22"/>
+        <source>United Kingdom</source>
+        <translation>Reino Unido</translation>
+    </message>
+    <message>
+        <location filename="../forms/mainwindow.ui" line="38"/>
+        <source>God save the Queen</source>
+        <translation>Deus salve a Rainha</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="46"/>
+        <source>England</source>
+        <translation>Inglaterra</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="47"/>
+        <source>Wales</source>
+        <translation>Gales</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="48"/>
+        <source>Scotland</source>
+        <translation>Escócia</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="49"/>
+        <source>Northern Ireland</source>
+        <translation>Irlanda Norte</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="51"/>
+        <source>Portuguese</source>
+        <translation>Português</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="52"/>
+        <source>English</source>
+        <translation>Inglês</translation>
+    </message>
+</context>
+</TS>
diff --git a/test/test_heuristics.rb b/test/test_heuristics.rb
index 4b208770..20e41ac9 100644
--- a/test/test_heuristics.rb
+++ b/test/test_heuristics.rb
@@ -143,4 +143,11 @@ class TestHeuristcs < Test::Unit::TestCase
       "LoomScript" => "LoomScript/HelloWorld.ls"
     })
   end
+
+  def test_ts_by_heuristics
+    assert_heuristics({
+      "TypeScript" => all_fixtures("TypeScript", "*.ts"),
+      "XML" => all_fixtures("XML", "*.ts")
+    })
+  end
 end