diff --git a/README.md b/README.md
index 9a80eaf07..4a2fad2ee 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,10 @@ Expand the Tools directory and select "Android SDK Build-tools (Version 19.1)".
 Expand the Extras directory and install "Android Support Repository"  
 Select everything for the newest SDK Platform (API-Level 19)
 4. Export ANDROID_HOME pointing to your Android SDK
-5. Execute ``./gradlew build``
-6. You can install the app with ``adb install -r OpenKeychain/build/outputs/apk/OpenKeychain-debug-unaligned.apk``
+5. Use OpenJDK 7 instead of Oracle JDK (this is required for OpenKeychain's tests based on Bouncy Castle)
+6. Execute ``./install-custom-gradle-test-plugin.sh``
+7. Execute ``./gradlew build``
+8. You can install the app with ``adb install -r OpenKeychain/build/outputs/apk/OpenKeychain-debug-unaligned.apk``
 
 ### Build API Demo with Gradle