diff --git a/ibm_catalog.json b/ibm_catalog.json
index 9ba70047..7ec02a82 100644
--- a/ibm_catalog.json
+++ b/ibm_catalog.json
@@ -246,6 +246,9 @@
             },
             {
               "key": "prefix",
+              "random_string": {
+                "length": 4
+              },
               "required": true,
               "value_constraints": [
                 {