diff --git a/package/ctcgfw/luci-app-adguardhome/luasrc/model/cbi/AdGuardHome/base.lua b/package/ctcgfw/luci-app-adguardhome/luasrc/model/cbi/AdGuardHome/base.lua
index 3bf49aaebb..6896b61eff 100644
--- a/package/ctcgfw/luci-app-adguardhome/luasrc/model/cbi/AdGuardHome/base.lua
+++ b/package/ctcgfw/luci-app-adguardhome/luasrc/model/cbi/AdGuardHome/base.lua
@@ -37,7 +37,7 @@ else
 	local version=uci:get("AdGuardHome","AdGuardHome","version")
 	local testtime=fs.stat(binpath,"mtime")
 	if testtime~=tonumber(binmtime) or version==nil then
-		local tmp=luci.sys.exec(binpath.." --version | grep -m 1 -E ' [0-9.]+' -o ")
+		local tmp=luci.sys.exec(binpath.." --version | grep -m 1 -E 'v[0-9.]+' -o ")
 		version=string.sub(tmp, 1)
 		if version=="" then version="core error" end
 		uci:set("AdGuardHome","AdGuardHome","version",version)