diff --git a/tests/Composer/Test/Command/InstallCommandTest.php b/tests/Composer/Test/Command/InstallCommandTest.php
index 8dc1c911e..350f1c0d1 100644
--- a/tests/Composer/Test/Command/InstallCommandTest.php
+++ b/tests/Composer/Test/Command/InstallCommandTest.php
@@ -157,7 +157,7 @@ class InstallCommandTest extends TestCase
         $this->assertNotEquals(0, $tester->getStatusCode());
         $this->assertMatchesRegularExpression(
             '/is[[:blank:]]+not[[:blank:]]+found[[:blank:]]+for[[:blank:]]+package[[:blank:]]+test\\/two/',
-            $tester->getDisplay()
+            \str_replaece(PHP_EOL, '', $tester->getDisplay())
         );
     }