diff --git a/metadata/org.tamanegi.atmosphere.txt b/metadata/org.tamanegi.atmosphere.txt
index fc376454ee..abe2104a13 100644
--- a/metadata/org.tamanegi.atmosphere.txt
+++ b/metadata/org.tamanegi.atmosphere.txt
@@ -32,7 +32,7 @@ Build:0.2.3,9
     commit=v0.2.3
     subdir=app
     gradle=yes
-    prebuild=sed -i 's/repositories {/repositories { mavenCentral()/' ../build.gradle
+    prebuild=sed -i -e '/keystoreProperties.*{/,/}/d; /keystoreProperties/d' build.gradle
 
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