diff --git a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
index d117df7bd38a..343d1f1a5151 100644
--- a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
+++ b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
@@ -344,7 +344,7 @@
           "type": "string",
           "description": "Enum of the Target reference type.",
           "enum": [
-            "ResourceId"
+            "ChaosTarget"
           ],
           "x-ms-enum": {
             "name": "TargetReferenceType",