diff --git a/radio/src/targets/horus/hal.h b/radio/src/targets/horus/hal.h
index e63e13e14..b810f81e2 100644
--- a/radio/src/targets/horus/hal.h
+++ b/radio/src/targets/horus/hal.h
@@ -331,6 +331,9 @@
   #endif
 #endif
 
+#define ADC_MAIN_SMPR1               (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
+#define ADC_MAIN_SMPR2               (ADC_SAMPTIME << 0) + (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);
+
 // Power
 #if defined(RADIO_T18)
 #define PWR_RCC_AHB1Periph              RCC_AHB1Periph_GPIOJ | RCC_AHB1Periph_GPIOB
diff --git a/radio/src/targets/taranis/hal.h b/radio/src/targets/taranis/hal.h
index 853100898..fb973a06b 100644
--- a/radio/src/targets/taranis/hal.h
+++ b/radio/src/targets/taranis/hal.h
@@ -878,7 +878,7 @@
   #define ADC_MAIN_SMPR1               (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + ((ADC_SAMPTIME + 1) << 24);
   #define ADC_MAIN_SMPR2               (ADC_SAMPTIME << 0) + (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);
 #else
-  #define ADC_MAIN_SMPR1               (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + ((ADC_SAMPTIME + 1) << 24);
+  #define ADC_MAIN_SMPR1               (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
   #define ADC_MAIN_SMPR2               (ADC_SAMPTIME << 0) + (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);
 #endif
 #if defined(PCBX9E)