diff --git a/library/think/cache/Driver.php b/library/think/cache/Driver.php
index f1c41fa4..2bdc0d80 100644
--- a/library/think/cache/Driver.php
+++ b/library/think/cache/Driver.php
@@ -168,7 +168,7 @@ abstract class Driver
             } else {
                 $value = array_unique(array_merge($this->getTagItem($name), $keys));
             }
-            $this->set($key, implode(',', $value));
+            $this->set($key, implode(',', $value), 0);
         }
         return $this;
     }
@@ -191,7 +191,7 @@ abstract class Driver
             } else {
                 $value = $name;
             }
-            $this->set($key, $value);
+            $this->set($key, $value, 0);
         }
     }