diff --git a/STM32/libraries/stm32_dma/src/stm32_dma_F0F1F3L1.h b/STM32/libraries/stm32_dma/src/stm32_dma_F0F1F3L1.h
index 8d4f381..537c9e2 100644
--- a/STM32/libraries/stm32_dma/src/stm32_dma_F0F1F3L1.h
+++ b/STM32/libraries/stm32_dma/src/stm32_dma_F0F1F3L1.h
@@ -28,6 +28,6 @@ const dma_request_to_instance_t dmaRequestToStream[] = {
 
 };
 
-inline static setDmaInstance(DMA_HandleTypeDef *handle, dma_request_to_instance_t dmaRequestToStream) {
+inline static void setDmaInstance(DMA_HandleTypeDef *handle, dma_request_to_instance_t dmaRequestToStream) {
     handle->Instance = dmaRequestToStream.dmaInstance;
 }
diff --git a/STM32/libraries/stm32_dma/src/stm32_dma_F2F4F7.h b/STM32/libraries/stm32_dma/src/stm32_dma_F2F4F7.h
index 5ac9910..b2e36fd 100644
--- a/STM32/libraries/stm32_dma/src/stm32_dma_F2F4F7.h
+++ b/STM32/libraries/stm32_dma/src/stm32_dma_F2F4F7.h
@@ -32,7 +32,7 @@ const dma_request_to_instance_t dmaRequestToStream[] = {
 
 };
 
-inline static setDmaInstance(DMA_HandleTypeDef *handle, dma_request_to_instance_t dmaRequestToStream) {
+inline static void setDmaInstance(DMA_HandleTypeDef *handle, dma_request_to_instance_t dmaRequestToStream) {
     handle->Instance = dmaRequestToStream.dmaInstance;
     handle->Init.Channel = dmaRequestToStream.channel;
 }