diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index af439d467886c..fcb3390e0ff9b 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -4777,7 +4777,6 @@ static int init_common_variables()
     return 1;
   }
 
-  global_system_variables.in_subquery_conversion_threshold= IN_SUBQUERY_CONVERSION_THRESHOLD;
 
 #ifdef WITH_WSREP
   /*