diff --git a/tools/src/Docs/DocGenerator.php b/tools/src/Docs/DocGenerator.php
index 0307a3f3..6fbb15b9 100644
--- a/tools/src/Docs/DocGenerator.php
+++ b/tools/src/Docs/DocGenerator.php
@@ -45,7 +45,7 @@ public function preamble(string $type): string
 
 EOT;
 
-        $preambleSnippet = $this->docPath('snippets'. DIRECTORY_SEPARATOR . 'preamble_' . strtolower($type) . '.md');
+        $preambleSnippet = $this->docPath('snippets' . DIRECTORY_SEPARATOR . 'preamble_' . strtolower($type) . '.md');
 
         if (file_exists($preambleSnippet)) {
             $preamble .= file_get_contents($preambleSnippet);