diff --git a/include/libopencm3/stm32/g4/usart.h b/include/libopencm3/stm32/g4/usart.h
index 4217b4d7..602d13b0 100644
--- a/include/libopencm3/stm32/g4/usart.h
+++ b/include/libopencm3/stm32/g4/usart.h
@@ -31,6 +31,7 @@
 
 #include <libopencm3/stm32/common/usart_common_all.h>
 #include <libopencm3/stm32/common/usart_common_v2.h>
+#include <libopencm3/stm32/common/usart_common_fifos.h>
 
 /**@{*/
 
diff --git a/lib/stm32/g4/Makefile b/lib/stm32/g4/Makefile
index 5c02cdcd..eac31138 100644
--- a/lib/stm32/g4/Makefile
+++ b/lib/stm32/g4/Makefile
@@ -55,7 +55,7 @@ OBJS += rng_common_v1.o
 OBJS += spi_common_all.o spi_common_v2.o
 OBJS += timer_common_all.o timer_common_f0234.o
 OBJS += quadspi_common_v1.o
-OBJS += usart_common_v2.o usart_common_all.o
+OBJS += usart_common_v2.o usart_common_all.o usart_common_fifos.o
 
 OBJS += usb.o usb_control.o usb_standard.o
 OBJS += usb_audio.o