diff --git a/radio/src/targets/nv14/adc_driver.cpp b/radio/src/targets/nv14/adc_driver.cpp
index be68f6559..8d414cc6c 100644
--- a/radio/src/targets/nv14/adc_driver.cpp
+++ b/radio/src/targets/nv14/adc_driver.cpp
@@ -71,6 +71,7 @@
 #elif defined(PCBNV14) && defined(FLYSKY_HALL_STICKS)
   #define FIRST_ANALOG_ADC             4
   #define NUM_MAIN_ANALOGS_ADC         9
+  #define NUM_SUB_ANALOGS_ADC          2
 #else
   #define FIRST_ANALOG_ADC             0
   #define FIRST_SUB_ANALOG_ADC         0
@@ -173,7 +174,7 @@ void adcInit()
   ADC_MAIN_DMA_Stream->NDTR = NUM_MAIN_ANALOGS_ADC;
   ADC_MAIN_DMA_Stream->FCR = DMA_SxFCR_DMDIS | DMA_SxFCR_FTH_0;
 
-#if NUM_SUB_ANALOGS > 0
+#if NUM_SUB_ANALOGS_ADC > 0
   ADC_SUB->SMPR1 = ADC_SAMPTIME + (ADC_SAMPTIME<<3) + (ADC_SAMPTIME<<6) + (ADC_SAMPTIME<<9) + (ADC_SAMPTIME<<12) + (ADC_SAMPTIME<<15) + (ADC_SAMPTIME<<18) + (ADC_SAMPTIME<<21) + (ADC_SAMPTIME<<24);
   ADC_SUB->SMPR2 = ADC_SAMPTIME + (ADC_SAMPTIME<<3) + (ADC_SAMPTIME<<6) + (ADC_SAMPTIME<<9) + (ADC_SAMPTIME<<12) + (ADC_SAMPTIME<<15) + (ADC_SAMPTIME<<18) + (ADC_SAMPTIME<<21) + (ADC_SAMPTIME<<24) + (ADC_SAMPTIME<<27);