diff --git a/rebuild-android-debugkey.sh b/rebuild-android-debugkey.sh
index e43c139..dca229e 100755
--- a/rebuild-android-debugkey.sh
+++ b/rebuild-android-debugkey.sh
@@ -5,6 +5,6 @@ mv -v debug.keystore debug.keystore-`date +%Y-%m-%d`
 keytool -genkey -v -keystore ./debug.keystore \
 -storepass android -alias androiddebugkey -keypass android \
 -dname "CN=Android Debug,O=Android,C=US" \
--validity 365
+-validity 365 \
+-keysize 1024
 chown buildbot:nogroup debug.keystore
-