1 files changed, 3 insertions, 1 deletions
diff --git a/sql/item_windowfunc.h b/sql/item_windowfunc.h
index 47cff870aa5..b2de0e9ca00 100644
--- a/sql/item_windowfunc.h
+++ b/sql/item_windowfunc.h
@@ -2,7 +2,7 @@
 #define ITEM_WINDOWFUNC_INCLUDED
 
 #include "my_global.h"
-#include "item_sum.h"
+#include "item.h"
 
 class Window_spec;
 
@@ -161,6 +161,8 @@ public:
   void fix_length_and_dec() { }
 
   const char* func_name() const { return "WF"; }
+
+  bool fix_fields(THD *thd, Item **ref);
 };