diff --git a/dev/tools/Magento/Tools/classmap/fs_generator.php b/dev/tools/Magento/Tools/classmap/fs_generator.php
index e50deb3a8c8b5..99ac1e4a5642f 100644
--- a/dev/tools/Magento/Tools/classmap/fs_generator.php
+++ b/dev/tools/Magento/Tools/classmap/fs_generator.php
@@ -34,7 +34,7 @@
 }
 
 if (!$path) {
-    echo "Please specify directory for scan: php -f FsGenerator.php path/to/code";
+    echo "Please specify directory for scan: php -f fs_generator.php path/to/code";
     exit;
 }