diff --git a/application/admin/command/FcInstall.php b/application/admin/command/FcInstall.php
index d53217b..545c6a7 100644
--- a/application/admin/command/FcInstall.php
+++ b/application/admin/command/FcInstall.php
@@ -34,7 +34,8 @@ class FcInstall extends Command
         $output->writeln('==> 建表（前缀 ' . $prefix . '）');
         $tables = $this->tables();
         foreach ($tables as $name => $sql) {
-            Db::execute(str_replace('`#P#`', '`' . $prefix . 'fc_', $sql));
+            // 占位符 #P# 位于反引号内（形如 `#P#config`），故按裸串替换
+            Db::execute(str_replace('#P#', $prefix . 'fc_', $sql));
             $output->writeln('    - ' . $prefix . 'fc_' . $name);
         }