diff --git a/companion/src/firmwares/opentx/simulator/opentxsimulator.cpp b/companion/src/firmwares/opentx/simulator/opentxsimulator.cpp
index b8f7503fb..1424cfa31 100644
--- a/companion/src/firmwares/opentx/simulator/opentxsimulator.cpp
+++ b/companion/src/firmwares/opentx/simulator/opentxsimulator.cpp
@@ -95,6 +95,7 @@ namespace NAMESPACE {
 #include "radio/src/telemetry/telemetry.cpp"
 #include "radio/src/telemetry/frsky_sport.cpp"
 #include "radio/src/sbus.cpp"
+#include "radio/src/crc16.cpp"
 #else
 #include "radio/src/main_avr.cpp"
 #include "radio/src/audio_avr.cpp"