diff --git a/radio/src/telemetry/frsky.cpp b/radio/src/telemetry/frsky.cpp
index 51f123872..7f6f41a27 100644
--- a/radio/src/telemetry/frsky.cpp
+++ b/radio/src/telemetry/frsky.cpp
@@ -459,7 +459,7 @@ void telemetryInterrupt10ms()
 #endif
 
       channel = g_model.frsky.currentSource - FRSKY_CURRENT_SOURCE_A1;
-      if (channel <= MAX_FRSKY_A_CHANNELS) {
+      if (channel < MAX_FRSKY_A_CHANNELS) {
         current = applyChannelRatio(channel, frskyData.analog[channel].value) / 10;
       }