diff --git a/scripts/qemu.sh b/scripts/qemu.sh
index 2ddf286..b2ea1cc 100755
--- a/scripts/qemu.sh
+++ b/scripts/qemu.sh
@@ -14,8 +14,13 @@ ninja install
 
 sudo sh ${DIR}/build_image.sh disk.img
 
+QEMU_ARGS=
+if [[ $1 == "debug" ]]; then
+  QEMU_ARGS+="-S -s"
+fi
+
 # Use machine q35 to access PCI devices.
-qemu-system-x86_64 -machine q35 -d guest_errors -m 1G -serial stdio -hda disk.img
+qemu-system-x86_64 -machine q35 -d guest_errors -m 1G -serial stdio -hda disk.img ${QEMU_ARGS}
 popd
 
 # Extra options to add to this script in the future.