diff --git a/Tools/Replay/MsgHandler_MSG.cpp b/Tools/Replay/MsgHandler_MSG.cpp
index b93401b26e..9e78f35684 100644
--- a/Tools/Replay/MsgHandler_MSG.cpp
+++ b/Tools/Replay/MsgHandler_MSG.cpp
@@ -14,7 +14,7 @@ void MsgHandler_MSG::process_message(uint8_t *msg)
 	ahrs.set_vehicle_class(AHRS_VEHICLE_FIXED_WING);
 	ahrs.set_fly_forward(true);
     } else if (strncmp(msg_text, "ArduCopter", strlen("ArduCopter")) == 0 ||
-	       strncmp(msg_text, "APM:Copter", strlen("APM:Copter"))) {
+	       strncmp(msg_text, "APM:Copter", strlen("APM:Copter")) == 0) {
 	vehicle = VehicleType::VEHICLE_COPTER;
 	::printf("Detected Copter\n");
 	ahrs.set_vehicle_class(AHRS_VEHICLE_COPTER);