diff --git a/radio/src/targets/common/arm/stm32/adc_driver.cpp b/radio/src/targets/common/arm/stm32/adc_driver.cpp
index 3972ab86c..6360b9676 100644
--- a/radio/src/targets/common/arm/stm32/adc_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/adc_driver.cpp
@@ -25,7 +25,7 @@
 #elif defined(RADIO_T16)
   const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1,  1,1,1,  -1,1,  -1,1};
 #elif defined(RADIO_TX16S)
-  const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1,  1,1,1,  -1,1,  -1,1};
+  const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1,  1,1,1,  -1,1,  -1,1};
 #elif defined(PCBX10)
   const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1,  -1,1,-1,   1,1,    1, -1};
 #elif defined(PCBX9E)