diff --git a/source/_integrations/thethingsnetwork.markdown b/source/_integrations/thethingsnetwork.markdown
index f88e84b59b3..c500aabd4ec 100644
--- a/source/_integrations/thethingsnetwork.markdown
+++ b/source/_integrations/thethingsnetwork.markdown
@@ -13,6 +13,10 @@ ha_platforms:
   - sensor
 ---
 
+<div class='note warning'>
+  This integration only supports TTNv2.
+</div>
+
 The `thethingsnetwork` integration allows one to interact with the [The Things Network](https://www.thethingsnetwork.org). This community-driven and open network supports [LoRaWAN](https://www.lora-alliance.org/) for long range (~5 to 15 km) communication with a low bandwidth (51 bytes/message). [Gateways](https://www.thethingsnetwork.org/docs/gateways/) transfers the received data from the sensors to the The Things Network.
 
 The Things network support various integrations to make the data available: