diff --git a/api.go b/api.go
index e4a2e2f..2827fb6 100644
--- a/api.go
+++ b/api.go
@@ -584,6 +584,8 @@ type CustomAlertBody struct {
 	Action               string `json:"action"`
 	SkipNotifications    bool   `json:"skipNotifications"`
 	BlockDurationSeconds int    `json:"blockDurationSeconds,omitempty"`
+	Operator             string `json:"operator,omitempty"`
+	FieldName            string `json:"fieldName,omitempty"`
 }
 
 // CreateCustomAlert creates a custom alert.