diff --git a/install.sh b/install.sh
index b1b83ab..2b10ed9 100755
--- a/install.sh
+++ b/install.sh
@@ -41,6 +41,9 @@ prompt_subscription_if_needed
 
 if [ -n "$(subscription_url 2>/dev/null || true)" ]; then
   if generate_config; then
+    if [ -n "${INSTALL_PENDING_SUBSCRIPTION_URL:-}" ]; then
+      write_env_value "CLASH_SUBSCRIPTION_URL" "$INSTALL_PENDING_SUBSCRIPTION_URL"
+    fi
     echo "✨ 订阅已生效"
     post_install_verify
   else
diff --git a/scripts/core/config.sh b/scripts/core/config.sh
index a8faa60..c9da7e2 100644
--- a/scripts/core/config.sh
+++ b/scripts/core/config.sh
@@ -2816,7 +2816,7 @@ prompt_subscription_if_needed() {
   fi
 
   input_fmt="$(detect_subscription_format "$input_url")"
-  write_env_value "CLASH_SUBSCRIPTION_URL" "$input_url"
+  INSTALL_PENDING_SUBSCRIPTION_URL="$input_url"
   bootstrap_subscription_from_install_input "$input_url" "$input_fmt" "default"
 }