diff --git a/.config/helix/languages.toml b/.config/helix/languages.toml
index 501011ab..65267614 100644
--- a/.config/helix/languages.toml
+++ b/.config/helix/languages.toml
@@ -33,8 +33,8 @@ workspace.library = [
 [language-server.tinymist]
 command = "tinymist"
 [language-server.tinymist.config]
-exportPdf = "never"
-# exportPdf = "onType"
+# exportPdf = "never"
+exportPdf = "onType"
 formatterMode = "typstyle"
 
 [[language]]