diff --git a/README.rst b/README.rst
index 86768e7..c907861 100644
--- a/README.rst
+++ b/README.rst
@@ -295,3 +295,8 @@ This cache can be flushed with the ``-z`` option:
 ::
 
   $ btlejack -z
+
+
+Hint for using btlejack on a Raspberry Pi
+-----------------------------------------
+If you have previously enabled **virtual ethernet over USB** (RNDIS), e.g. to setup a Raspberry Pi Zero W over USB, you need to disable this again (i.e. remove ``dtoverlay=dwc2`` from boot/config.txt and ``modules-load=dwc2,g_ether`` from boot/cmdline.txt, then ``sudo reboot``), because this would otherwise interfere with the sniffers' USB connections.