diff --git a/companion/src/firmwares/opentx/opentxinterface.h b/companion/src/firmwares/opentx/opentxinterface.h
index d0ab7f7d2..aa2a2e512 100644
--- a/companion/src/firmwares/opentx/opentxinterface.h
+++ b/companion/src/firmwares/opentx/opentxinterface.h
@@ -101,6 +101,7 @@ class OpenTxFirmware: public Firmware {
 
       addTTSLanguage("en");
       addTTSLanguage("cz");
+      addTTSLanguage("de");
       addTTSLanguage("es");
       addTTSLanguage("fr");
       addTTSLanguage("hu");