diff --git a/radio/src/sdcard.h b/radio/src/sdcard.h
index a37476d3a..98dff0e03 100644
--- a/radio/src/sdcard.h
+++ b/radio/src/sdcard.h
@@ -141,7 +141,7 @@ const char * getBasename(const char * path);
 #elif defined(PCBX7)
   #define OTX_FOURCC 0x3678746F // otx for Taranis X7 / X7S / X7 Express / X7S Express
 #elif defined(PCBX9LITES)
-  #define OTX_FOURCC 0x3E78746F // otx for Taranis X9-Lite
+  #define OTX_FOURCC 0x3E78746F // otx for Taranis X9-Lite S
 #elif defined(PCBX9LITE)
   #define OTX_FOURCC 0x3C78746F // otx for Taranis X9-Lite
 #elif defined(PCBX9D) || defined(PCBX9DP)