diff --git a/metadata/org.mozilla.klar.txt b/metadata/org.mozilla.klar.txt
index cb00a8a394..adb994b320 100644
--- a/metadata/org.mozilla.klar.txt
+++ b/metadata/org.mozilla.klar.txt
@@ -45,7 +45,13 @@ Build:2.0,11
     subdir=app
     gradle=klar,webkit
     rm=app/libs/*
-    prebuild=sed -i -e '/focusCompile/d' -e '/geckoCompile/d' build.gradle
+    prebuild=sed -i -e '/focusCompile/d' -e '/geckoCompile/d' -e '/Dynamically set versionCode/,/^}/d' build.gradle
+
+Maintainer Notes:
+Release builds calculate version code dynamically. This is unsuitable for us
+because it depends on date and time. Use default version code (supposed to be
+used in debug builds): it's a well-formed static constant bumped every release.
+.
 
 Auto Update Mode:Version v%v
 Update Check Mode:Tags ^v[0-9.]+$