diff --git a/install.php b/install.php
index 2cbf8e3b1b97917f5c8bfa66cffa2082c54266fb..f1f7b19b16e8ffa8c90c9cb0658237770f593619 100644
--- a/install.php
+++ b/install.php
@@ -32,7 +32,7 @@ $basePath = '/vufind';
 
 echo "VuFind has been found in {$baseDir}.\n\n";
 
-if (!isset($argv[1]) || $argv[1] != '--use-defaults') {
+if (!isset($argv[1]) || !in_array('--use-defaults', $argv)) {
     // Get override directory path:
     while (true) {
         $overrideDirInput = getInput(