diff --git a/tst/YourlsProxyTest.php b/tst/YourlsProxyTest.php
index 1895503b..fb12137d 100644
--- a/tst/YourlsProxyTest.php
+++ b/tst/YourlsProxyTest.php
@@ -1,5 +1,6 @@
 <?php
 
+use PHPUnit\Framework\TestCase;
 use PrivateBin\Configuration;
 use PrivateBin\YourlsProxy;