diff --git a/metadata/com.physphil.android.unitconverterultimate.txt b/metadata/com.physphil.android.unitconverterultimate.txt
index f02adad1b7..27124944c1 100644
--- a/metadata/com.physphil.android.unitconverterultimate.txt
+++ b/metadata/com.physphil.android.unitconverterultimate.txt
@@ -25,6 +25,9 @@ Build:4.3,40300
     commit=v4.2
     subdir=app
     gradle=yes
+    rm=app/src/main/java/com/physphil/android/unitconverterultimate/DonateActivity.java,app/src/main/java/com/physphil/android/unitconverterultimate/ui/DonationListAdapter.java
+    prebuild=perl -0 -p -i -e 's|<Preference\s[^<]*<intent\s[^<]*\.DonateActivity".*?</Preference>\s*||s' app/src/main/res/xml/preferences.xml && \
+        perl -0 -p -i -e 's|<activity\s[^<]*"\.DonateActivity".*?/>\s*||s' app/src/main/AndroidManifest.xml
 
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