diff --git a/sql/set_var.cc b/sql/set_var.cc
index d5aadbfbdab..122daa0ea95 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -593,6 +593,8 @@ struct show_var_st init_vars[]= {
   {sys_query_cache_limit.name,(char*) &sys_query_cache_limit,	    SHOW_SYS},
   {sys_query_cache_size.name, (char*) &sys_query_cache_size,	    SHOW_SYS},
   {sys_query_cache_type.name, (char*) &sys_query_cache_type,        SHOW_SYS},
+  {sys_query_cache_wlock_invalidate.name,
+   (char*) &sys_query_cache_wlock_invalidate, SHOW_SYS},
 #endif /* HAVE_QUERY_CACHE */
   {sys_query_prealloc_size.name, (char*) &sys_query_prealloc_size,  SHOW_SYS},
   {sys_range_alloc_block_size.name, (char*) &sys_range_alloc_block_size,