diff --git a/messages.go b/messages.go
index 371b90d..555b767 100644
--- a/messages.go
+++ b/messages.go
@@ -969,7 +969,7 @@ type StatusMessage struct {
 
 type BleAdvertisementPayload struct {
 	LocalName        string                              `json:"localName,omitempty"`
-	Company          string                              `json:"company,omitempty"`
+	Companies        []string                            `json:"companies,omitempty"`
 	Bytes            []byte                              `json:"bytes,omitempty"`
 	ManufacturerData []bluetooth.ManufacturerDataElement `json:"manufacturerData,omitempty"`
 }