diff --git a/framework/core/src/Asset/LessCompiler.php b/framework/core/src/Asset/LessCompiler.php
index 0c0ed1b35..52546106b 100644
--- a/framework/core/src/Asset/LessCompiler.php
+++ b/framework/core/src/Asset/LessCompiler.php
@@ -44,7 +44,7 @@ class LessCompiler extends RevisionCompiler
             'compress' => true,
             'cache_dir' => $this->cachePath,
             'import_dirs' => [
-                base_path().'vendor/fortawesome/font-awesome/less' => '',
+                base_path().'/vendor/fortawesome/font-awesome/less' => '',
             ],
         ]);