diff --git a/luci-app-passwall/root/usr/share/passwall/adblock.sh b/luci-app-passwall/root/usr/share/passwall/adblock.sh
index 18abed5d..c048dd92 100755
--- a/luci-app-passwall/root/usr/share/passwall/adblock.sh
+++ b/luci-app-passwall/root/usr/share/passwall/adblock.sh
@@ -50,7 +50,7 @@ process_url() {
         # 去除首尾空格
         gsub(/^[[:space:]]+|[[:space:]]+$/, "")
         # 跳过注释和空行
-        if ($0 ~ /^#/ || $0 == "") next
+        if ($0 ~ /^#/ || $0 ~ /^!/ || $0 == "") next
 
         # 前20行探测格式
         if (sample_count < 20) {