diff --git a/admin_manual/installation/system_requirements.rst b/admin_manual/installation/system_requirements.rst
index 015c416c0..e823cc93d 100644
--- a/admin_manual/installation/system_requirements.rst
+++ b/admin_manual/installation/system_requirements.rst
@@ -56,7 +56,7 @@ If you want to use UTF8 4-byte characters such as Emojis on your server, the dat
 Additionally the following InnoDB settings need to be set::
 
   [mysqld]
-  innodb_large_prefix=true
+  innodb_large_prefix=on
   innodb_file_format=barracuda
   innodb_file_per_table=true
 
diff --git a/admin_manual/maintenance/mysql_4byte_support.rst b/admin_manual/maintenance/mysql_4byte_support.rst
index 04e1ff075..d6f44bcaf 100644
--- a/admin_manual/maintenance/mysql_4byte_support.rst
+++ b/admin_manual/maintenance/mysql_4byte_support.rst
@@ -11,7 +11,7 @@ installation needs to be tweaked a bit.
 2. Make sure the following InnoDB settings are set on your MySQL server::
 
     [mysqld]
-    innodb_large_prefix=true
+    innodb_large_prefix=on
     innodb_file_format=barracuda
     innodb_file_per_table=1