diff --git a/radio/src/targets/horus/CMakeLists.txt b/radio/src/targets/horus/CMakeLists.txt
index 769fef213..82be85d9a 100644
--- a/radio/src/targets/horus/CMakeLists.txt
+++ b/radio/src/targets/horus/CMakeLists.txt
@@ -93,6 +93,9 @@ if (PCB STREQUAL X10)
     add_definitions(-DRADIO_TX16S)
     add_definitions(-DRADIO_FAMILY_T16)
     option(INTERNAL_MODULE_MULTI "Support for MULTI internal module" ON)
+    if(CROSSFIRE)
+      option(INTERNAL_MODULE_CRSF "Support for CRSF internal module" ON)
+    endif()
     option(BLUETOOTH "Support for bluetooth module" OFF)
     option(INTERNAL_GPS "Support for internal ublox GPS" OFF)
     set(HARDWARE_TOUCH YES)
@@ -225,6 +228,12 @@ if(INTERNAL_MODULE_MULTI)
   add_definitions(-DINTERNAL_MODULE_SERIAL_TELEMETRY)
 endif()
 
+if(INTERNAL_MODULE_CRSF)
+  add_definitions(-DHARDWARE_INTERNAL_MODULE)
+  add_definitions(-DINTERNAL_MODULE_CRSF)
+  add_definitions(-DINTERNAL_MODULE_SERIAL_TELEMETRY)
+endif()
+
 if(ALLOW_TRAINER_MULTI)
   add_definitions(-DALLOW_TRAINER_MULTI)
 endif()