diff --git a/Makefile b/Makefile
index d52c976..7fbd99e 100644
--- a/Makefile
+++ b/Makefile
@@ -74,7 +74,7 @@ OBJCOPY = $(TOOLPREFIX)objcopy
 OBJDUMP = $(TOOLPREFIX)objdump
 CFLAGS = -fno-pic -static -fno-builtin -fno-strict-aliasing -O2 -Wall -MD -ggdb -m32 -Werror -fno-omit-frame-pointer
 CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
-ASFLAGS = -m32 -gdwarf-2
+ASFLAGS = -m32 -gdwarf-2 -Wa,-divide
 # FreeBSD ld wants ``elf_i386_fbsd''
 LDFLAGS += -m $(shell $(LD) -V | grep elf_i386 2>/dev/null)