diff --git a/source/hassio/zwave.markdown b/source/hassio/zwave.markdown
index 44034fc09d6..9f143fbea96 100644
--- a/source/hassio/zwave.markdown
+++ b/source/hassio/zwave.markdown
@@ -18,7 +18,7 @@ zwave:
 
 ### {% linkable_title RAZBERRY BOARD %}
 
-If you need GPIO on Raspberry Pi 3 for your Z-Wave module, add the following line into `config.txt` (you have to access that on the SD card directly; simply plug it into your PC and edit it there):
+If you need GPIO on Raspberry Pi 3 for your Z-Wave module, add the following line into `config.txt` (you have to access that on the SD card directly; simply plug it into your PC and edit it there. The 'config.txt' is not accessible from Ubuntu, you may need to open the SD Card in windows.):
 
 ```
 dtoverlay=pi3-miniuart-bt