diff --git a/sql/item.cc b/sql/item.cc
index 76aad708d22..e2994bb8615 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -2398,7 +2398,7 @@ default_set_param_func(Item_param *param,
 }
 
 
-Item_param::Item_param(unsigned pos_in_query_arg) :
+Item_param::Item_param(uint pos_in_query_arg) :
   strict_type(FALSE),
   state(NO_VALUE),
   item_result_type(STRING_RESULT),