diff --git a/metadata/im.vector.alpha.txt b/metadata/im.vector.alpha.txt
index a9e4baca96..4668857f10 100644
--- a/metadata/im.vector.alpha.txt
+++ b/metadata/im.vector.alpha.txt
@@ -72,12 +72,10 @@ Build:0.3.4,304
     subdir=vector
     gradle=appfdroid
     srclibs=matrixsdk@80a629ab18d525beabeebec6ab9065b776e94455
-    prebuild=GRADLE_OPTS="$GRADLE_OPTS -Xmx512m" && cp -fR $$matrixsdk$$/matrix-sdk ../ && \
+    prebuild=cp -fR $$matrixsdk$$/matrix-sdk ../ && \
         sed -i -e '/projectDir/d' ../settings.gradle && \
         sed -i -e '/play-services/d' build.gradle
 
-
-
 Auto Update Mode:None
 Update Check Mode:None
 Current Version:0.3.4