diff --git a/demo/README.md b/demo/README.md
index 37198ad..43d2ebc 100644
--- a/demo/README.md
+++ b/demo/README.md
@@ -9,10 +9,13 @@
 ## Installing
 
 ```
-adb install out/dist/MicrodroidDemoApp.apk
+adb install -t out/dist/MicrodroidDemoApp.apk
 adb shell pm grant com.android.microdroid.demo android.permission.MANAGE_VIRTUAL_MACHINE
 ```
 
+Don't run the app before granting the permission. Or you will have to uninstall
+the app, and then re-install it.
+
 ## Running
 
 Run the app by touching the icon on the launcher. Press the `run` button to