diff --git a/libraries/AP_Mount/AP_Mount_Viewpro.cpp b/libraries/AP_Mount/AP_Mount_Viewpro.cpp
index 7144d6ded44501..b58ca0fcdf4e58 100644
--- a/libraries/AP_Mount/AP_Mount_Viewpro.cpp
+++ b/libraries/AP_Mount/AP_Mount_Viewpro.cpp
@@ -889,7 +889,8 @@ void AP_Mount_Viewpro::send_camera_information(mavlink_channel_t chan) const
         0,                      // lens_id uint8_t
         flags,                  // flags uint32_t (CAMERA_CAP_FLAGS)
         0,                      // cam_definition_version uint16_t
-        cam_definition_uri);    // cam_definition_uri char[140]
+        cam_definition_uri,     // cam_definition_uri char[140]
+        _instance + 1);         // gimbal_device_id uint8_t
 }
 
 // send camera settings message to GCS