diff --git a/install-release.sh b/install-release.sh
index 8f8cbaf..6b8ba40 100644
--- a/install-release.sh
+++ b/install-release.sh
@@ -298,7 +298,7 @@ download_v2ray() {
     # Verification of V2Ray archive
     for LISTSUM in 'md5' 'sha1' 'sha256' 'sha512'; do
         SUM="$(${LISTSUM}sum $ZIP_FILE | sed 's/ .*//')"
-        CHECKSUM="$(grep ${LISTSUM^^} $ZIP_FILE.dgst | sed 's/.* //')"
+        CHECKSUM="$(grep ${LISTSUM^^} $ZIP_FILE.dgst | grep $SUM -o -a | uniq)"
         if [[ "$SUM" != "$CHECKSUM" ]]; then
             echo 'error: Check failed! Please check your network or try again.'
             return 1