diff --git a/src/Stash/Item.php b/src/Stash/Item.php
index 3dc81849..f7c72b32 100644
--- a/src/Stash/Item.php
+++ b/src/Stash/Item.php
@@ -319,7 +319,6 @@ public function set($data, $ttl = null)
     {
         try {
             if ($this->mode == Mode::READ_ONLY) {
-                $this->clear();
                 return false;
             } else {
                 return $this->executeSet($data, $ttl);