diff --git a/tests/Composer/Test/Command/InstallCommandTest.php b/tests/Composer/Test/Command/InstallCommandTest.php
index f5c71d4b9..08a9153fd 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->assertStringContainsString(
             'is not found for package test/two',
-            $tester->getDisplay()
+            \str_replace(PHP_EOL, '', $tester->getDisplay())
         );
     }