diff --git a/tests/unit/system/classes/CombineAssetsTest.php b/tests/unit/system/classes/CombineAssetsTest.php
index 700c2f68a..7f52c0c1c 100644
--- a/tests/unit/system/classes/CombineAssetsTest.php
+++ b/tests/unit/system/classes/CombineAssetsTest.php
@@ -121,7 +121,7 @@ class CombineAssetsTest extends TestCase
         $combiner = CombineAssets::instance();
         self::setProtectedProperty($combiner, 'localPath', $samplePath);
 
-        $value = self::callProtectedMethod($combiner, 'makeCacheId', [$sampleResources]);
+        $value = self::callProtectedMethod($combiner, 'getCacheKey', [$sampleResources]);
         $this->assertEquals(md5($samplePath.implode('|', $sampleResources)), $value);
     }