diff --git a/cmd/batch-handlers.go b/cmd/batch-handlers.go
index cb1df6096..04632ef9c 100644
--- a/cmd/batch-handlers.go
+++ b/cmd/batch-handlers.go
@@ -1565,7 +1565,7 @@ func (a adminAPIHandlers) StartBatchJob(w http.ResponseWriter, r *http.Request)
 	}
 
 	job := &BatchJobRequest{}
-	if err = yaml.Unmarshal(buf, job); err != nil {
+	if err = yaml.UnmarshalStrict(buf, job); err != nil {
 		writeErrorResponseJSON(ctx, w, toAPIError(ctx, err), r.URL)
 		return
 	}