diff --git a/phpBB/install/install_install.php b/phpBB/install/install_install.php
index c7f442a65b..8b0d86db7e 100755
--- a/phpBB/install/install_install.php
+++ b/phpBB/install/install_install.php
@@ -11,6 +11,12 @@
 /**
 */
 
+if ( !defined('IN_INSTALL') )
+{
+	// Someone has tried to access the file direct. This is not a good idea, so exit
+	exit;
+}
+
 if (!empty($setmodules))
 {
 	$module[] = array(
diff --git a/phpBB/install/install_main.php b/phpBB/install/install_main.php
index 80516a895f..ad534aaeb8 100755
--- a/phpBB/install/install_main.php
+++ b/phpBB/install/install_main.php
@@ -11,6 +11,12 @@
 /**
 */
 
+if ( !defined('IN_INSTALL') )
+{
+	// Someone has tried to access the file direct. This is not a good idea, so exit
+	exit;
+}
+
 if (!empty($setmodules))
 {
 	$module[] = array(