diff --git a/src/Cm/RedisSession/Handler.php b/src/Cm/RedisSession/Handler.php
index b901452..9482b67 100644
--- a/src/Cm/RedisSession/Handler.php
+++ b/src/Cm/RedisSession/Handler.php
@@ -416,6 +416,19 @@ protected function hasConnection()
         }
     }
 
+    /**
+     * Set/unset read only flag
+     *
+     * @param boolean $readOnly
+     * @return self
+     */
+    public function setReadOnly($readOnly)
+    {
+        $this->_readOnly = $readOnly;
+
+        return $this;
+    }
+
     /**
      * Fetch session data
      *