diff --git a/src/test/java/codes/thischwa/cf/CfBasicHttpClientTest.java b/src/test/java/codes/thischwa/cf/CfBasicHttpClientTest.java
index 485491d..1d844b2 100644
--- a/src/test/java/codes/thischwa/cf/CfBasicHttpClientTest.java
+++ b/src/test/java/codes/thischwa/cf/CfBasicHttpClientTest.java
@@ -82,7 +82,7 @@ class CfBasicHttpClientTest {
     assertTrue(exception.getMessage().contains("Unexpected error"));
     Throwable cause = exception.getCause();
     assertInstanceOf(CloudflareApiException.class, cause);
-    assertTrue(cause.getMessage().contains("API error: 10404: No route for that URI"));
+    assertTrue(cause.getMessage().contains("API error: 10404: No route for that URI"), "Expected error message No route for that URI");
   }
 
   @Test