diff --git a/admin_manual/configuration_database/mysql_4byte_support.rst b/admin_manual/configuration_database/mysql_4byte_support.rst
index 86a14d24e..ba40df380 100644
--- a/admin_manual/configuration_database/mysql_4byte_support.rst
+++ b/admin_manual/configuration_database/mysql_4byte_support.rst
@@ -9,7 +9,7 @@ installation needs to be tweaked a bit.
 2. Make sure the following InnoDB settings are set on your MySQL server::
 
     [mysqld]
-    innodb_large_prefix=on
+    innodb_large_prefix=1
     innodb_file_format=barracuda
     innodb_file_per_table=1