diff --git a/linux-x64/phserver/phserver.sh b/linux-x64/phserver/phserver.sh
index f56358a..6074c49 100755
--- a/linux-x64/phserver/phserver.sh
+++ b/linux-x64/phserver/phserver.sh
@@ -22,11 +22,13 @@ if [ -f /etc/os-release ]; then
     if [[ "${NAME}" == "uos" ]] && [[ "${VERSION_ID}" == "20" ]]; then
         echo "Detected UOS V20, running with ablrun..."
         
+        bash# 定义 ablrun 的完整路径
+        ABLRUN="$(dirname "${BASH_SOURCE[0]}")/abl_portable/usr/bin/ablrun"
         # 检查 ablrun 是否可用
-        if command -v ablrun &> /dev/null; then
-            $(dirname "${BASH_SOURCE[0]}")/abl_portable/usr/bin/ablrun "${APPIMAGE}" "$@"
+        if [[ -x "${ABLRUN}" ]]; then
+            "${ABLRUN}" "${APPIMAGE}" "$@"
         else
-            echo "Warning: ablrun command not available, trying direct execution..."
+            echo "Warning: ablrun not found at ${ABLRUN}, trying direct execution..."
             "${APPIMAGE}" "$@"
         fi
     else