diff --git a/firmware/can.cpp b/firmware/can.cpp
index b87fa1f..470b939 100644
--- a/firmware/can.cpp
+++ b/firmware/can.cpp
@@ -25,7 +25,7 @@ void CanTxThread(void*)
             SendCanForChannel(ch);
         }
 
-        chThdSleepMilliseconds(10);
+        chThdSleepMilliseconds(WBO_TX_PERIOD_MS);
     }
 }
 
diff --git a/for_rusefi/wideband_can.h b/for_rusefi/wideband_can.h
index a454a4b..01f7937 100644
--- a/for_rusefi/wideband_can.h
+++ b/for_rusefi/wideband_can.h
@@ -26,6 +26,9 @@
 #define WB_MGS_ECU_STATUS 0xEF5'0000
 #define WB_DATA_BASE_ADDR 0x190
 
+// we transmit every 10ms
+#define WBO_TX_PERIOD_MS 10
+
 namespace wbo
 {
 enum class Fault : uint8_t