diff --git a/Makefile b/Makefile
index 0a270a7..29aa115 100644
--- a/Makefile
+++ b/Makefile
@@ -28,6 +28,7 @@ LDFLAGS += -m elf64lriscv
 
 CFLAGS = -Wall -Werror -O
 CFLAGS += -Wno-unused-result
+CFLAGS += -Wno-unused-variable
 CFLAGS += -mcmodel=medany
 CFLAGS += -march=rv64gc -mabi=lp64
 CFLAGS += -ffreestanding