diff --git a/libraries/AP_Mount/AP_Mount_Siyi.cpp b/libraries/AP_Mount/AP_Mount_Siyi.cpp
index 714a9cadd694e..1e4c54c8bf694 100644
--- a/libraries/AP_Mount/AP_Mount_Siyi.cpp
+++ b/libraries/AP_Mount/AP_Mount_Siyi.cpp
@@ -302,6 +302,7 @@ void AP_Mount_Siyi::read_incoming_packets()
         if (reset_parser) {
             _parsed_msg.state = ParseState::WAITING_FOR_HEADER_LOW;
             _msg_buff_len = 0;
+            reset_parser = false;
         }
     }
 }