diff --git a/test/groovy/com/sap/piper/ConfigurationHelperTest.groovy b/test/groovy/com/sap/piper/ConfigurationHelperTest.groovy
index a7b0274f3..caa26e3bf 100644
--- a/test/groovy/com/sap/piper/ConfigurationHelperTest.groovy
+++ b/test/groovy/com/sap/piper/ConfigurationHelperTest.groovy
@@ -55,7 +55,7 @@ class ConfigurationHelperTest {
     @Test
     void testConfigurationLoaderWithCustomSettings() {
         Map config = new ConfigurationHelper([property1: "27"])
-            .mixin([property1: "41"]], ['property2'])
+            .mixin([property1: "41"]])
             .use()
         // asserts
         Assert.assertThat(config, hasEntry('property1', false))