diff --git a/site-modules/sqlserverhenry/manifests/win_sqlserver.pp b/site-modules/sqlserverhenry/manifests/win_sqlserver.pp
index 0bf24c6..451c935 100644
--- a/site-modules/sqlserverhenry/manifests/win_sqlserver.pp
+++ b/site-modules/sqlserverhenry/manifests/win_sqlserver.pp
@@ -1,7 +1,7 @@
 class sqlserverhenry::win_sqlserver {
   sqlserver_instance{ 'MSSQLSERVER':
       features                => ['SQL'],
-      source                  => 'C:/SQLEXPR_x64_ENU.exe',
+      source                  => 'C:\\SQLEXPR_x64_ENU',
       sql_sysadmin_accounts   => ['myuser'],
   }