diff --git a/src/Symfony/Component/Translation/Dumper/XliffFileDumper.php b/src/Symfony/Component/Translation/Dumper/XliffFileDumper.php
index 8ee8d5a009a1f..2718da010d388 100644
--- a/src/Symfony/Component/Translation/Dumper/XliffFileDumper.php
+++ b/src/Symfony/Component/Translation/Dumper/XliffFileDumper.php
@@ -141,7 +141,11 @@ private function dumpXliff2($defaultLocale, MessageCatalogue $messages, $domain,
         $xliff->setAttribute('trgLang', str_replace('_', '-', $messages->getLocale()));
 
         $xliffFile = $xliff->appendChild($dom->createElement('file'));
-        $xliffFile->setAttribute('id', $domain.'.'.$messages->getLocale());
+        if (MessageCatalogue::INTL_DOMAIN_SUFFIX === substr($domain, -($suffixLength = \strlen(MessageCatalogue::INTL_DOMAIN_SUFFIX)))) {
+            $xliffFile->setAttribute('id', substr($domain, 0, -$suffixLength).'.'.$messages->getLocale());
+        } else {
+            $xliffFile->setAttribute('id', $domain.'.'.$messages->getLocale());
+        }
 
         foreach ($messages->all($domain) as $source => $target) {
             $translation = $dom->createElement('unit');
diff --git a/src/Symfony/Component/Translation/Tests/Dumper/XliffFileDumperTest.php b/src/Symfony/Component/Translation/Tests/Dumper/XliffFileDumperTest.php
index c634a27936711..6377132f7009b 100644
--- a/src/Symfony/Component/Translation/Tests/Dumper/XliffFileDumperTest.php
+++ b/src/Symfony/Component/Translation/Tests/Dumper/XliffFileDumperTest.php
@@ -54,6 +54,21 @@ public function testFormatCatalogueXliff2()
         );
     }
 
+    public function testFormatIcuCatalogueXliff2()
+    {
+        $catalogue = new MessageCatalogue('en_US');
+        $catalogue->add([
+            'foo' => 'bar',
+        ], 'messages'.MessageCatalogue::INTL_DOMAIN_SUFFIX);
+
+        $dumper = new XliffFileDumper();
+
+        $this->assertStringEqualsFile(
+            __DIR__.'/../fixtures/resources-2.0+intl-icu.xlf',
+            $dumper->formatCatalogue($catalogue, 'messages'.MessageCatalogue::INTL_DOMAIN_SUFFIX, ['default_locale' => 'fr_FR', 'xliff_version' => '2.0'])
+        );
+    }
+
     public function testFormatCatalogueWithCustomToolInfo()
     {
         $options = [
diff --git a/src/Symfony/Component/Translation/Tests/fixtures/resources-2.0+intl-icu.xlf b/src/Symfony/Component/Translation/Tests/fixtures/resources-2.0+intl-icu.xlf
new file mode 100644
index 0000000000000..6294f162fd7b0
--- /dev/null
+++ b/src/Symfony/Component/Translation/Tests/fixtures/resources-2.0+intl-icu.xlf
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xliff xmlns="urn:oasis:names:tc:xliff:document:2.0" version="2.0" srcLang="fr-FR" trgLang="en-US">
+  <file id="messages.en_US">
+    <unit id="LCa0a2j" name="foo">
+      <segment>
+        <source>foo</source>
+        <target>bar</target>
+      </segment>
+    </unit>
+  </file>
+</xliff>