diff --git a/packages/android-js-engine/AndroidJSEngine/consumer-rules.pro b/packages/android-js-engine/AndroidJSEngine/consumer-rules.pro
index e69de29b..ffc08b7d 100644
--- a/packages/android-js-engine/AndroidJSEngine/consumer-rules.pro
+++ b/packages/android-js-engine/AndroidJSEngine/consumer-rules.pro
@@ -0,0 +1,2 @@
+# The native engine finds these classes by name through JNI.
+-keep class io.ionic.android_js_engine.** { *; }