diff --git a/firmware/console/connector_uart_dma.cpp b/firmware/console/connector_uart_dma.cpp
index 5767a51e72..9ae1e738b5 100644
--- a/firmware/console/connector_uart_dma.cpp
+++ b/firmware/console/connector_uart_dma.cpp
@@ -9,6 +9,10 @@
 
 #if TS_UART_DMA_MODE || PRIMARY_UART_DMA_MODE
 
+#if TS_UART_DMA_MODE && PRIMARY_UART_DMA_MODE
+ #error "Only single-DMA implemented right now"
+#endif
+
 EXTERN_CONFIG;
 
 // Async. FIFO buffer takes some RAM...