diff --git a/src/cdk/v2/destinations/fullstory/procWorkflow.yaml b/src/cdk/v2/destinations/fullstory/procWorkflow.yaml
index 1a54e8688c..26da955623 100644
--- a/src/cdk/v2/destinations/fullstory/procWorkflow.yaml
+++ b/src/cdk/v2/destinations/fullstory/procWorkflow.yaml
@@ -76,7 +76,7 @@ steps:
         "use_most_recent": .message.properties.useMostRecent,
       };
       $.context.payload.user = {
-        "id": .message.properties.userId ?? .message.userId,
+        "uid": .message.properties.userId ?? .message.userId,
       }
 
   - name: cleanPayload
diff --git a/test/integrations/destinations/fullstory/processor/data.ts b/test/integrations/destinations/fullstory/processor/data.ts
index d206b4a84f..9c8d29c7e8 100644
--- a/test/integrations/destinations/fullstory/processor/data.ts
+++ b/test/integrations/destinations/fullstory/processor/data.ts
@@ -149,7 +149,7 @@ export const data = [
                     id: 's001',
                   },
                   user: {
-                    id: 'u001',
+                    uid: 'u001',
                   },
                 },
                 JSON_ARRAY: {},