diff --git a/sql/item_func.cc b/sql/item_func.cc
index 67bf9b3319f..4322fa058a7 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -4838,7 +4838,6 @@ bool Item_func_get_system_var::is_written_to_binlog()
 void Item_func_get_system_var::fix_length_and_dec()
 {
   char *cptr;
-  int well_formed_error;
   maybe_null=0;
   max_length= 0;