diff --git a/library/think/db/Query.php b/library/think/db/Query.php
index 21858779..c833cc05 100644
--- a/library/think/db/Query.php
+++ b/library/think/db/Query.php
@@ -2944,7 +2944,7 @@ class Query
             }
         }
 
-        if (isset(static::$readMaster['*']) || isset(static::$readMaster[$options['table']])) {
+        if (isset(static::$readMaster['*']) || (is_string($options['table']) && isset(static::$readMaster[$options['table']]))) {
             $options['master'] = true;
         }