diff --git a/radio/src/opentx.h b/radio/src/opentx.h
index 2c26fef44..884392b3b 100644
--- a/radio/src/opentx.h
+++ b/radio/src/opentx.h
@@ -1477,7 +1477,7 @@ enum AUDIO_SOUNDS {
     SCRIPT_MIX_FIRST,
     SCRIPT_MIX_LAST=SCRIPT_MIX_FIRST+MAX_SCRIPTS-1,
     SCRIPT_FUNC_FIRST,
-    SCRIPT_FUNC_LAST=SCRIPT_FUNC_FIRST+MAX_SCRIPTS-1,
+    SCRIPT_FUNC_LAST=SCRIPT_FUNC_FIRST+NUM_CFN-1,
     SCRIPT_TELEMETRY_FIRST,
     SCRIPT_TELEMETRY_LAST=SCRIPT_TELEMETRY_FIRST+MAX_SCRIPTS, // telem0 and telem1 .. telem7
   };