diff --git a/inc/config.php b/inc/config.php
index 8f6fdf0e..f8b31c0d 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -635,7 +635,10 @@
 	
 	// The root directory, including the trailing slash, for Tinyboard.
 	// examples: '/', 'http://boards.chan.org/', '/chan/'
-	$config['root']	 = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/');
+	if(isset($_SERVER['REQUEST_URI']))
+		$config['root']	 = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/');
+	else
+		$config['root'] = '/'; // CLI mode
 	
 	// If for some reason the folders and static HTML index files aren't in the current working direcotry,
 	// enter the directory path here. Otherwise, keep it false.
diff --git a/inc/functions.php b/inc/functions.php
index d7136fa7..12b51d25 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -45,24 +45,28 @@
 			$config['post_url'] = $config['root'] . $config['file_post'];
 		
 		if(!isset($config['referer_match']))
-			$config['referer_match'] = '/^' .
-				(preg_match($config['url_regex'], $config['root']) ? '' :
-					'https?:\/\/' . $_SERVER['HTTP_HOST']) .
-					preg_quote($config['root'], '/') .
-				'(' .
-						str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
-						'(' .
-							preg_quote($config['file_index'], '/') . '|' .
-							str_replace('%d', '\d+', preg_quote($config['file_page'])) .
-						')?' .
-					'|' .
-						str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
-						preg_quote($config['dir']['res'], '/') .
-						str_replace('%d', '\d+', preg_quote($config['file_page'], '/')) .
-					'|' .
-						preg_quote($config['file_mod'], '/') . '\?\/.+' .
-				')([#?](.+)?)?$/i';
-		
+			if(isset($_SERVER['HTTP_HOST'])) {
+				$config['referer_match'] = '/^' .
+					(preg_match($config['url_regex'], $config['root']) ? '' :
+						'https?:\/\/' . $_SERVER['HTTP_HOST']) .
+						preg_quote($config['root'], '/') .
+					'(' .
+							str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
+							'(' .
+								preg_quote($config['file_index'], '/') . '|' .
+								str_replace('%d', '\d+', preg_quote($config['file_page'])) .
+							')?' .
+						'|' .
+							str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
+							preg_quote($config['dir']['res'], '/') .
+							str_replace('%d', '\d+', preg_quote($config['file_page'], '/')) .
+						'|' .
+							preg_quote($config['file_mod'], '/') . '\?\/.+' .
+					')([#?](.+)?)?$/i';
+			} else {
+				// CLI mode
+				$config['referer_match'] = '//';
+			}
 		if(!isset($config['cookies']['path']))
 			$config['cookies']['path'] = &$config['root'];