diff --git a/docs/docs.md b/docs/docs.md
index 6df00a3..132bd78 100644
--- a/docs/docs.md
+++ b/docs/docs.md
@@ -569,6 +569,7 @@ post on the meshtastic.discourse.group and we'll try to help.
 | UBloxInitFailed | 5 | We failed while configuring a UBlox GPS |
 | NoAXP192 | 6 | This board was expected to have a power management chip and it is missing or broken |
 | InvalidRadioSetting | 7 | The channel tried to set a radio setting which is not supported by this chipset, radio comms settings are now undefined. |
+| TransmitFailed | 8 | Radio transmit hardware failure. We sent data to the radio chip, but it didn't reply with an interrupt. |