diff --git a/android_app/upload_apk.sh b/android_app/upload_apk.sh
old mode 100644
new mode 100755
index 36c65196..507b32c2
--- a/android_app/upload_apk.sh
+++ b/android_app/upload_apk.sh
@@ -1,2 +1,4 @@
-  # copy apk file to home
-  cp app/build/outputs/apk/app-debug.apk $HOME/openScale-dev-build.apk
+#!/bin/sh
+
+# copy apk file to home
+cp app/build/outputs/apk/debug/app-debug.apk $HOME/openScale-dev-build.apk