diff --git a/firmware/controllers/can/can_rx.h b/firmware/controllers/can/can_rx.h
new file mode 100644
index 0000000000..d606f3f435
--- /dev/null
+++ b/firmware/controllers/can/can_rx.h
@@ -0,0 +1,8 @@
+/*
+ * @file can_rx.h
+ *
+ *  Created on: Feb 11, 2021
+ * @author Andrey Belomutskiy, (c) 2012-2021
+ */
+
+bool acceptCanRx(int sid DECLARE_ENGINE_PARAMETER_SUFFIX);
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 25f86f2d71..83e2d885b6 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -929,6 +929,8 @@ custom maf_sensor_type_e 4 bits, S32, @OFFSET@, [0:1], @@maf_sensor_type_e_enum@
 
 	maf_sensor_type_e mafSensorType;
 
+#define CAN_RX_PREFIX "CAN_rx"
+
 #define CRITICAL_PREFIX "CRITICAL"
 ! same length used for critical and soft error messages
 #define ERROR_BUFFER_SIZE 120