diff --git a/library/think/db/Connection.php b/library/think/db/Connection.php
index a45d8d3e..2e716b29 100644
--- a/library/think/db/Connection.php
+++ b/library/think/db/Connection.php
@@ -284,7 +284,7 @@ abstract class Connection
         if ($this->linkID) {
             return $this->linkID->getAttribute(PDO::ATTR_DRIVER_NAME);
         } else {
-            return basename(str_replace('\\', '/', $this->config['type']));
+            return $this->config['type'];
         }
     }