diff --git a/README.md b/README.md
index 0976bcc..5cd0d85 100644
--- a/README.md
+++ b/README.md
@@ -119,7 +119,7 @@ $WUNDERGROUND_TO_ECOWITT = array(
 
 ## TODO
 
-- [ ] check traffic if the gateway connects to any cloud services and if so, block the traffic
+- [ ] check traffic if the gateway connects to any cloud services and if so, block the traffic ([#1](https://git.vbrandl.net/lorenz/froggit-get-convert-data/issues/1))
 
 ---