diff --git a/README.md b/README.md
index d0947af..28b2715 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ A container to provide out-of-the-box bridging functionality to a ZeroTier netwo
 
 Once running, log into your ZeroTier interface and approve the new device. Click the wrench next to the name and select 'Allow Ethernet Bridging.'
 
-You also need to add a static route into ZeroTier so that the traffic is routed correctly. **see below**
+You also need to add a static route into ZeroTier so that the traffic is routed correctly. Add this a bit larger than normal because of [longest prefix matching](https://en.wikipedia.org/wiki/Longest_prefix_match).
 
 ![brave_4wHd9zo193](https://user-images.githubusercontent.com/1135584/129230132-11bcfb72-7d9b-4b40-a4e5-72130c583077.png)