diff --git a/src/main.c b/src/main.c
index 7c2b327..6324436 100644
--- a/src/main.c
+++ b/src/main.c
@@ -22,6 +22,7 @@ static void clock_setup(void)
 	/* Enable clocks for peripherals. */
 	rcc_periph_clock_enable(RCC_USART2);
 	rcc_periph_clock_enable(RCC_ADC1);
+	rcc_periph_clock_enable(RCC_DMA);
 	rcc_periph_clock_enable(RCC_TIM21);
 }