diff --git a/radio/src/targets/horus/trainer_driver.cpp b/radio/src/targets/horus/trainer_driver.cpp
index 83ec7a542..a4f0c7b6b 100644
--- a/radio/src/targets/horus/trainer_driver.cpp
+++ b/radio/src/targets/horus/trainer_driver.cpp
@@ -106,7 +106,7 @@ void trainerSendNextFrame()
 {
   TRAINER_TIMER->CCR2 = GET_TRAINER_PPM_DELAY() * 2;
   TRAINER_TIMER->CCER = TIM_CCER_CC2E | (GET_TRAINER_PPM_POLARITY() ? 0 : TIM_CCER_CC2P);
-  TRAINER_TIMER->CCR1 = *(trainerPulsesData.ppm.ptr - 1) - 4000; // 2mS in advance
+  TRAINER_TIMER->CCR3 = *(trainerPulsesData.ppm.ptr - 1) - 4000; // 2mS in advance
 
   TRAINER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
   TRAINER_DMA_STREAM->CR |= TRAINER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
@@ -123,8 +123,8 @@ extern "C" void TRAINER_DMA_IRQHandler()
 
   DMA_ClearITPendingBit(TRAINER_DMA_STREAM, TRAINER_DMA_FLAG_TC);
 
-  TRAINER_TIMER->SR &= ~TIM_SR_CC1IF; // Clear flag
-  TRAINER_TIMER->DIER |= TIM_DIER_CC1IE; // Enable this interrupt
+  TRAINER_TIMER->SR &= ~TIM_SR_CC3IF; // Clear flag
+  TRAINER_TIMER->DIER |= TIM_DIER_CC3IE; // Enable this interrupt
 }
 
 extern "C" void TRAINER_TIMER_IRQHandler()
@@ -148,10 +148,10 @@ extern "C" void TRAINER_TIMER_IRQHandler()
   }
 
   // PPM out compare interrupt
-  if ((TRAINER_TIMER->DIER & TIM_DIER_CC1IE) && (TRAINER_TIMER->SR & TIM_SR_CC1IF)) {
+  if ((TRAINER_TIMER->DIER & TIM_DIER_CC3IE) && (TRAINER_TIMER->SR & TIM_SR_CC3IF)) {
     // compare interrupt
-    TRAINER_TIMER->DIER &= ~TIM_DIER_CC1IE; // stop this interrupt
-    TRAINER_TIMER->SR &= ~TIM_SR_CC1IF; // Clear flag
+    TRAINER_TIMER->DIER &= ~TIM_DIER_CC3IE; // stop this interrupt
+    TRAINER_TIMER->SR &= ~TIM_SR_CC3IF; // Clear flag
     setupPulsesPPMTrainer();
     trainerSendNextFrame();
   }