diff --git a/poky/documentation/dev-manual/runtime-testing.rst b/poky/documentation/dev-manual/runtime-testing.rst
index be1e8c0..1a2e9ec 100644
--- a/poky/documentation/dev-manual/runtime-testing.rst
+++ b/poky/documentation/dev-manual/runtime-testing.rst
@@ -52,6 +52,8 @@
          -  Be sure to use an absolute path when calling this script
             with sudo.
 
+         -  Ensure that your host has the package ``iptables`` installed.
+
          -  The package recipe ``qemu-helper-native`` is required to run
             this script. Build the package using the following command::