diff --git a/stage3/01-sudo-without-passwd/00-run.sh b/stage3/01-sudo-without-passwd/00-run.sh
old mode 100644
new mode 100755
diff --git a/stage3/02-add-vision-service/00-run.sh b/stage3/02-add-vision-service/00-run.sh
old mode 100644
new mode 100755
diff --git a/stage3/EXPORT_IMAGE b/stage3/EXPORT_IMAGE
new file mode 100644
index 0000000..5d50c77
--- /dev/null
+++ b/stage3/EXPORT_IMAGE
@@ -0,0 +1,3 @@
+if [ "${USE_QEMU}" = "1" ]; then
+	export IMG_SUFFIX="${IMG_SUFFIX}-qemu"
+fi
\ No newline at end of file
diff --git a/stage3/prerun.sh b/stage3/prerun.sh
old mode 100644
new mode 100755