diff --git a/tools/marvin/marvin/config/test_data.py b/tools/marvin/marvin/config/test_data.py
index 9b2aee70368..6b02476f5ab 100644
--- a/tools/marvin/marvin/config/test_data.py
+++ b/tools/marvin/marvin/config/test_data.py
@@ -708,7 +708,7 @@ test_data = {
             "url": "http://people.apache.org/~tsp/dummy.iso",
             "bootable": False,
             "ispublic": False,
-            "ostype": "CentOS 5.6 (64-bit)",
+            "ostype": "Other (64-bit)",
     },
     "iso1": {
         "displaytext": "Test ISO 1",