diff --git a/adaptor/PCM-CORE/api/desc/core/pcm-core.api b/adaptor/PCM-CORE/api/desc/core/pcm-core.api
index 6b116442..81d8da7e 100644
--- a/adaptor/PCM-CORE/api/desc/core/pcm-core.api
+++ b/adaptor/PCM-CORE/api/desc/core/pcm-core.api
@@ -211,7 +211,7 @@ type (
     TrainJob {
         Name string `json:"name"`
         Status string `json:"status"`
-        ServiceName string `json:"ServiceName"`
+        ServiceName string `json:"serviceName"`
         SynergyStatus string `json:"synergyStatus"`
         Strategy int `json:"strategy"`
     }