diff --git a/files/scripts/backup_system.sh b/files/scripts/backup_system.sh
index a246f40..611bdb5 100755
--- a/files/scripts/backup_system.sh
+++ b/files/scripts/backup_system.sh
@@ -46,7 +46,8 @@ echo "*** Creating backup at '$BACKUP' ***"
 sudo zip -rv "$BACKUP" \
 	/etc /var/{log,mail,spool} /srv /boot \
 	/usr/local/etc $EXTRA \
-	-x "/srv/backup/*" -x "/srv/sftp/*"
+	-x "/srv/backup/*" -x "/srv/sftp/*" \
+	-x "*/.gradle/" -x "*/app/build/*"
 status="$?"
 
 if [[ "$status" != 0 ]]; then
@@ -68,7 +69,8 @@ sleep 5
 
 echo "*** Creating backup at '$BACKUP2' ***"
 sudo zip -rv "$BACKUP2" \
-	/root /home /srv/sftp
+	/root /home /srv/sftp \
+	-x "*/.gradle/" -x "*/app/build/*"
 status="$?"
 
 if [[ "$status" != 0 ]]; then