diff --git a/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp b/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
index e918f174a..a9ee219f2 100755
--- a/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/intmodule_serial_driver.cpp
@@ -140,6 +140,9 @@ void intmoduleSendBuffer(const uint8_t * data, uint8_t size)
     return;
 
 #if defined(INTMODULE_DMA_STREAM)
+  if (!DMA_GetITStatus(INTMODULE_DMA_STREAM, INTMODULE_DMA_FLAG_TC))
+    return;;
+
   DMA_InitTypeDef DMA_InitStructure;
   DMA_DeInit(INTMODULE_DMA_STREAM);
   DMA_InitStructure.DMA_Channel = INTMODULE_DMA_CHANNEL;