diff --git a/src/opentx.cpp b/src/opentx.cpp
index a1bdef372..38943aa8b 100644
--- a/src/opentx.cpp
+++ b/src/opentx.cpp
@@ -1017,7 +1017,7 @@ bool __getSwitch(int8_t swtch)
 #if defined(FRSKY)
           // Telemetry
           if (cs->v1 >= MIXSRC_FIRST_TELEM) {
-            if (frskyStreaming <= 0 && cs->v1 > MIXSRC_FIRST_TELEM-1+MAX_TIMERS)
+            if (frskyStreaming <= 0 && cs->v1 > MIXSRC_FIRST_TELEM-1+TELEM_TM2)
               return swtch > 0 ? false : true;
 
             y = convertCswTelemValue(cs);