diff --git a/Installation-on-Android-devices.md b/Installation-on-Android-devices.md
index 1f2ec90..241b87f 100644
--- a/Installation-on-Android-devices.md
+++ b/Installation-on-Android-devices.md
@@ -11,3 +11,8 @@ KOReader isn't currently available on the Google Playstore. It will need to be i
     2.2 **From your device**: download the latest release package using the browser on your device and open the package once downloaded. It will prompt you to start the installation.
 
     2.3 **From your computer**: download the latest release package to your computer. Once it is downloaded you can install it using `adb` with the command `adb install koreader-*.apk`
+
+
+## Err, there are two Android packages to choose from, which one should I pick?
+
+The Android package names indicate the architecture supported by the binaries. Unless you have a specific reason not to, you should choose ARM.
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