diff --git a/metadata/org.pacien.tincapp.txt b/metadata/org.pacien.tincapp.txt
index c7733461a7..3f99891c2e 100644
--- a/metadata/org.pacien.tincapp.txt
+++ b/metadata/org.pacien.tincapp.txt
@@ -103,6 +103,7 @@ Build:0.18,18
     commit=v0.18
     subdir=app
     gradle=yes
+    prebuild=sed -i -e '/keystorePropertiesFile/,+2d' -e '/signingConfigs/,+7d' -e '/signingConfigs.release/d' -e '/keystoreProperties/d' build.gradle
 
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