diff --git a/htdocs/api/index.php b/htdocs/api/index.php
index 50a37793273..6ccdab6c179 100644
--- a/htdocs/api/index.php
+++ b/htdocs/api/index.php
@@ -56,7 +56,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/functions2.lib.php';
 
 
 $url = $_SERVER['PHP_SELF'];
-if (preg_match('/api\/index\.php$', $url)) {	// sometimes $_SERVER['PHP_SELF'] is 'api\/index\.php' instead of 'api\/index\.php/explorer.php' or 'api\/index\.php/method'
+if (preg_match('/api\/index\.php$/', $url)) {	// sometimes $_SERVER['PHP_SELF'] is 'api\/index\.php' instead of 'api\/index\.php/explorer.php' or 'api\/index\.php/method'
 	$url = $_SERVER['PHP_SELF'].$_SERVER['PATH_INFO'];
 }
 // Fix for some NGINX setups (this should not be required even with NGINX, however setup of NGINX are often mysterious and this may help is such cases)