diff --git a/pkg/model/stats.go b/pkg/model/stats.go
index 621775a..b0188a5 100644
--- a/pkg/model/stats.go
+++ b/pkg/model/stats.go
@@ -47,6 +47,7 @@
 }
 
 type OnuEthernetFrameExtendedPm struct {
+	PmFormat                  string  `json:"pm_format"`
 	UDropEvents               *uint64 `json:"upstream_drop_events,omitempty"`
 	UOctets                   *uint64 `json:"upstream_octets,omitempty"`
 	UFrames                   *uint64 `json:"upstream_frames,omitempty"`