diff --git a/src/Kconfig b/src/Kconfig
index ea2300ec..54c3497e 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -61,6 +61,11 @@ config USB_SERIAL_NUMBER_CHIPID
 config USB_SERIAL_NUMBER
     default "12345"
 
+# Generic configuration options for CANbus
+config CANBUS_FREQUENCY
+    int "CAN bus speed" if LOW_LEVEL_OPTIONS && CANSERIAL
+    default 500000
+
 menu "USB ids"
     depends on USBSERIAL && LOW_LEVEL_OPTIONS
 config USB_VENDOR_ID
diff --git a/src/stm32/Kconfig b/src/stm32/Kconfig
index 62551dd8..30c72414 100644
--- a/src/stm32/Kconfig
+++ b/src/stm32/Kconfig
@@ -351,8 +351,4 @@ choice
         select CANSERIAL
 endchoice
 
-config CANBUS_FREQUENCY
-    int "CAN bus speed" if LOW_LEVEL_OPTIONS && CANSERIAL
-    default 500000
-
 endif