diff --git a/templates/php.ini.j2 b/templates/php.ini.j2
index 6bd20b2..2280d59 100644
--- a/templates/php.ini.j2
+++ b/templates/php.ini.j2
@@ -209,7 +209,7 @@ mssql.max_persistent = -1
 mssql.max_links = -1
 mssql.min_error_severity = 10
 mssql.min_message_severity = 10
-mssql.compatibility_mode = Off
+mssql.compatability_mode = Off
 mssql.secure_connection = Off
 
 [Tidy]