diff --git a/radio/src/dmafifo.h b/radio/src/dmafifo.h
index 4721ccdadc..38f0bcdb4f 100644
--- a/radio/src/dmafifo.h
+++ b/radio/src/dmafifo.h
@@ -27,12 +27,8 @@ template <int N>
 class DMAFifo
 {
   public:
-#if defined(STM32F0)
-    explicit DMAFifo(DMA_Channel_TypeDef * stream):
-#else
-    explicit DMAFifo(DMA_Stream_TypeDef * stream):
-#endif
-      stream(stream),
+    explicit DMAFifo(DMA_Channel_TypeDef * channel):
+      channel(channel),
       ridx(0)
     {
     }
@@ -49,11 +45,7 @@ class DMAFifo
 
     uint8_t last(int index)
     {
-#if defined(STM32F0)
-      return fifo[(2*N - stream->CNDTR - index) & (N-1)];
-#else
-      return fifo[(2*N - stream->NDTR - index) & (N-1)];
-#endif
+      return fifo[(2*N - channel->CNDTR - index) & (N-1)];
     }
 
     bool isEmpty()
@@ -61,11 +53,7 @@ class DMAFifo
 #if defined(SIMU)
       return true;
 #endif
-#if defined(STM32F0)
-      return (ridx == N - stream->CNDTR);
-#else
-      return (ridx == N - stream->NDTR);
-#endif
+      return (ridx == N - channel->CNDTR);
     }
 
     bool pop(uint8_t & element)
@@ -85,11 +73,7 @@ class DMAFifo
       return fifo;
     }
 
-#if defined(STM32F0)
-    DMA_Channel_TypeDef * stream;
-#else
-    DMA_Stream_TypeDef * stream;
-#endif
+    DMA_Channel_TypeDef * channel;
   protected:
     uint8_t fifo[N];
     volatile uint32_t ridx;
diff --git a/radio/src/targets/common/arm/stm32/aux_serial_driver.cpp b/radio/src/targets/common/arm/stm32/aux_serial_driver.cpp
index f54bdf7dd3..d9d178db2a 100644
--- a/radio/src/targets/common/arm/stm32/aux_serial_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/aux_serial_driver.cpp
@@ -56,7 +56,7 @@ void auxSerialSetup(unsigned int baudrate, bool dma, uint16_t lenght = USART_Wor
 
   if (dma) {
 #if defined(SBUS_TRAINER)
-    auxSerialRxFifo.stream = AUX_SERIAL_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
+    auxSerialRxFifo.channel = AUX_SERIAL_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
     auxSerialRxFifo.clear();
     USART_ITConfig(AUX_SERIAL_USART, USART_IT_RXNE, DISABLE);
     USART_ITConfig(AUX_SERIAL_USART, USART_IT_TXE, DISABLE);
@@ -300,7 +300,7 @@ void aux4SerialSetup(unsigned int baudrate, bool dma, uint16_t lenght = USART_Wo
   USART_InitStructure.USART_Mode = USART_Mode_Rx;
   USART_Init(AUX4_SERIAL_USART, &USART_InitStructure);
 
-    aux4SerialRxFifo.stream = AUX4_SERIAL_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
+    aux4SerialRxFifo.channel = AUX4_SERIAL_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
     aux4SerialRxFifo.clear();
     // USART_ITConfig(AUX4_SERIAL_USART, USART_IT_RXNE, DISABLE);
     AUX4_SERIAL_USART->CR1 &= ~(USART_CR1_RXNEIE /*| USART_CR1_TXEIE*/);
diff --git a/radio/src/targets/flysky/telemetry_driver.cpp b/radio/src/targets/flysky/telemetry_driver.cpp
index cfea190423..e7de917ac9 100644
--- a/radio/src/targets/flysky/telemetry_driver.cpp
+++ b/radio/src/targets/flysky/telemetry_driver.cpp
@@ -87,7 +87,7 @@ void telemetryPortInit(uint32_t baudrate, uint8_t mode) {
   USART_DMACmd(TELEMETRY_USART, USART_DMAReq_Rx, DISABLE);
   DMA_DeInit(TELEMETRY_DMA_Channel_RX);
 
-  telemetryDMAFifo.stream = TELEMETRY_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
+  telemetryDMAFifo.channel = TELEMETRY_DMA_Channel_RX; // workaround, CNDTR reading do not work otherwise
   telemetryDMAFifo.clear();
 
   USART_ITConfig(TELEMETRY_USART, USART_IT_RXNE, DISABLE);