diff --git a/api/resource/signature/0.png b/api/resource/signature/0.png
deleted file mode 100644
index e4e8dca..0000000
Binary files a/api/resource/signature/0.png and /dev/null differ
diff --git a/backup/backup.sh b/backup/backup.sh
index a5e848c..dcc22c6 100755
--- a/backup/backup.sh
+++ b/backup/backup.sh
@@ -20,7 +20,7 @@ if [ -z "$1" ]
   then
     DATE=$(date '+%Y-%m-%d')
     mkdir -p ${DATE}/resource
-    cp -R ../api/resource/ ${DATE}/
+    cp -R ../api/resource/ ${DATE}/resource
   else
     DATE=${1}
     tar -xzf ${DATE}.tar.gz