diff --git a/src/test/java/com/store/ContractTest.java b/src/test/java/com/store/ContractTest.java
index bbc66ea..e1cce45 100644
--- a/src/test/java/com/store/ContractTest.java
+++ b/src/test/java/com/store/ContractTest.java
@@ -9,7 +9,7 @@
 
 public class ContractTest implements SpecmaticContractTest {
     private static ConfigurableApplicationContext context;
-
+    private static final String EXCLUDED_ENDPOINTS = "'/internal/metrics'";
     @BeforeAll
     public static void setUp() {
         System.setProperty("host", "localhost");
@@ -17,7 +17,8 @@ public static void setUp() {
         System.setProperty("endpointsAPI", "http://localhost:8090/actuator/mappings");
         System.setProperty("SPECMATIC_GENERATIVE_TESTS", "true");
         System.setProperty("SPECMATIC_TEST_PARALLELISM", "auto");
-        System.setProperty("filter", "PATH!='/internal/metrics'");
+        System.setProperty("filter", String.format("PATH!=%s", EXCLUDED_ENDPOINTS));
+
         DB.INSTANCE.resetDB();
 
         context = SpringApplication.run(Application.class);