diff --git a/Makefile b/Makefile
index 859ce6c413..38f32aef16 100644
--- a/Makefile
+++ b/Makefile
@@ -146,6 +146,9 @@ COMMON_SRC	 = build_config.c \
 		   rx/rx.c \
 		   rx/pwm.c \
 		   rx/msp.c \
+		   rx/sbus.c \
+		   rx/sumd.c \
+		   rx/spektrum.c \
 		   sensors/acceleration.c \
 		   sensors/battery.c \
 		   sensors/boardalignment.c \
@@ -160,9 +163,6 @@ HIGHEND_SRC  = flight/autotune.c \
 		   flight/gps_conversion.c \
 		   io/gps.c \
 		   io/ledstrip.c \
-		   rx/sbus.c \
-		   rx/sumd.c \
-		   rx/spektrum.c \
 		   telemetry/telemetry.c \
 		   telemetry/frsky.c \
 		   telemetry/hott.c \
diff --git a/src/main/target/CJMCU/target.h b/src/main/target/CJMCU/target.h
index e49112bd6e..b388f3c848 100644
--- a/src/main/target/CJMCU/target.h
+++ b/src/main/target/CJMCU/target.h
@@ -49,3 +49,5 @@
 // #define SOFT_I2C_PB67
 
 #define SENSORS_SET (SENSOR_ACC | SENSOR_MAG)
+
+#define SERIAL_RX