diff --git a/HISTORY b/HISTORY
index 1a8deab..fd99931 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,7 +1,8 @@
 
-Version 5.12  2017-08-10
+Version 5.12  2017-10-16
  * code refine for rare case
  * replace print format OFF_PRINTF_FORMAT to PRId64
+ * php_ext fix zend_object_store_get_object call in php5.5
 
 Version 5.11  2017-05-26
  * bug fixed: file_offset has no effect when use trunk file
diff --git a/php_client/fastdfs_client.c b/php_client/fastdfs_client.c
index d48ed77..28c82e8 100644
--- a/php_client/fastdfs_client.c
+++ b/php_client/fastdfs_client.c
@@ -53,7 +53,7 @@ typedef struct
 
 
 #if PHP_MAJOR_VERSION < 7
-#define fdfs_get_object(obj) zend_object_store_get_object(obj)
+#define fdfs_get_object(obj) zend_object_store_get_object(obj TSRMLS_CC)
 #else
 #define fdfs_get_object(obj) (void *)((char *)(Z_OBJ_P(obj)) - XtOffsetOf(php_fdfs_t, zo))
 #endif