diff --git a/Makefile.x86_64.cfg b/Makefile.x86_64.cfg
index f5985c2ca95f42d56df6a51d5ab81210230d3c85..54bbf5168fe1cdc7d89e8efbbbb5db1527a7b9dd 100644
--- a/Makefile.x86_64.cfg
+++ b/Makefile.x86_64.cfg
@@ -1,7 +1,7 @@
 
 CC = x86_64-none-elf-gcc
 LD = x86_64-none-elf-ld
-DISASM = x86_64-none-elf-objdump -d -M x86-64
+DISASM = x86_64-none-elf-objdump -d -M x86-64 -S
 
 KERNEL_CFLAGS := -mcmodel=kernel -nostdlib -mno-red-zone -Wall -Werror
 DYNMOD_CFLAGS := -mcmodel=small -fPIC -mno-red-zone