diff --git a/modules/config/manifests/vscode.pp b/modules/config/manifests/vscode.pp
index b252e8f..6cd6196 100644
--- a/modules/config/manifests/vscode.pp
+++ b/modules/config/manifests/vscode.pp
@@ -31,7 +31,8 @@ class config::vscode {
     'zolocode.editorzoom',
     'formulahendry.auto-close-tag',
     'James-Yu.latex-workshop',
-    'docsmsft.docs-authoring-pack'
+    'docsmsft.docs-authoring-pack',
+    'tomoki1207.pdf'
   ];
 
   $extensions.each |String $extension| {