diff --git a/mkht.php b/mkht.php
index b6ad549..1f8bb00 100755
--- a/mkht.php
+++ b/mkht.php
@@ -10,12 +10,6 @@ define('ROOT', dirname(realpath($_SERVER['SCRIPT_FILENAME'])));
 if (!extension_loaded('tidy'))
 	echo 'PHP tidy extension unavailable. Feature disabled.' . PHP_EOL;
 
-foreach (['pandoc', 'gzip', 'po4a'] as $command) {
-	exec('command -v ' . $command, result_code: $code);
-	if ($code !== 0)
-		exit($command . ' command not available.' . PHP_EOL);
-}
-
 foreach ($argv as $arg) {
 	if ($arg === '-f')
 		$opt['force'] = true;
@@ -46,6 +40,16 @@ if (!isset($config['id'])) {
 	file_put_contents(SITE . 'config.ini', 'id = "' . $config['id'] . '"' . LF, FILE_APPEND);
 }
 
+foreach (['pandoc', 'gzip', 'po4a'] as $command) {
+	if ($command === 'po4a' && file_exists(SITE . 'po4a.cfg') === false)
+		continue;
+	if ($command === 'gzip' && !$config['gzip'])
+		continue;
+	exec('command -v ' . $command, result_code: $code);
+	if ($code !== 0)
+		exit($command . ' command not available.' . PHP_EOL);
+}
+
 // Determine whether links need to use Onion or DNS
 function clearnetOrOnion($clearnet_url, $onion_url) {
 	return (DESTINATION === 'onion') ? $onion_url : $clearnet_url;
@@ -76,7 +80,8 @@ foreach($nodes_src as $node) {
 	copy($src, $target);
 }
 
-exec('po4a ' . SITE . 'po4a.cfg');
+if (file_exists(SITE . 'po4a.cfg'))
+	exec('po4a ' . SITE . 'po4a.cfg');
 
 $nodes_cache = new RecursiveIteratorIterator(new RecursiveDirectoryIterator(SITE . 'cache/', RecursiveDirectoryIterator::SKIP_DOTS));