diff --git a/luci-app-passwall/Makefile b/luci-app-passwall/Makefile
index 81662643f..9436f89e6 100644
--- a/luci-app-passwall/Makefile
+++ b/luci-app-passwall/Makefile
@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=luci-app-passwall
 PKG_VERSION:=26.4.15
-PKG_RELEASE:=89
+PKG_RELEASE:=90
 PKG_PO_VERSION:=$(PKG_VERSION)
 
 PKG_CONFIG_DEPENDS:= \
diff --git a/luci-app-passwall/root/usr/share/passwall/app.sh b/luci-app-passwall/root/usr/share/passwall/app.sh
index 7dd779a21..0ee590cba 100755
--- a/luci-app-passwall/root/usr/share/passwall/app.sh
+++ b/luci-app-passwall/root/usr/share/passwall/app.sh
@@ -1558,7 +1558,7 @@ start_dns() {
 
 start_adblock() {
 	[ "$(config_t_get global adblock 0)" != "1" ] && {
-	[ -s $RULES_PATH/my_block_host ] && ln -sf $RULES_PATH/my_block_host $RULES_PATH/block_host || echo "" >$RULES_PATH/block_host
+	[ -s $RULES_PATH/my_block_host ] && ln -sf $RULES_PATH/my_block_host $RULES_PATH/block_host || > $RULES_PATH/block_host
 	return
 	}
 	"$APP_PATH/adblock.sh" > /dev/null 2>&1 &