diff --git a/tools/OTAPacker/ziplist.sh b/tools/OTAPacker/ziplist.sh
index a6893f8f6d..c984646d50 100755
--- a/tools/OTAPacker/ziplist.sh
+++ b/tools/OTAPacker/ziplist.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -e
 
-zipinfo -O GB2312 -v $1 \
+zipinfo -O utf8 -v $1 \
     | sed -n -e '/^Central directory entry/,+3p' -e '/32-bit CRC value (hex):/p' | grep '^  ' \
     | sed -e 's/^  //g' | sed -z 's/\n32-bit CRC value (hex):\s*/\t/g' \
     | awk '{last = $NF; $NF=""; print last,$0}'
diff --git a/tools/OTAPacker/zipota.sh b/tools/OTAPacker/zipota.sh
index 14ce0f09cf..9e37e1cb81 100755
--- a/tools/OTAPacker/zipota.sh
+++ b/tools/OTAPacker/zipota.sh
@@ -25,6 +25,6 @@ tmpdir=$(mktemp -d /tmp/zipota-files.XXX)
 comm -23 <(echo "$from_fn") <(echo "$to_fn") > "$tmpdir"/removelist.txt
 echo "$to_fn" > "$tmpdir"/filelist.txt
 
-zip -r -j "$out_zip" "$tmpdir"/removelist.txt "$tmpdir"/filelist.txt
+zip -X -r -j "$out_zip" "$tmpdir"/removelist.txt "$tmpdir"/filelist.txt
 
 rm -rf $tmpdir