diff --git a/PyTeX/config/global_config.py b/PyTeX/config/global_config.py
index 3738446..cd1e655 100644
--- a/PyTeX/config/global_config.py
+++ b/PyTeX/config/global_config.py
@@ -8,6 +8,7 @@ class GlobalPyTeXConfig:
     _build_root: Optional[Path] = None
     _doc_root: Optional[Path] = None
     _tex_root: Optional[Path] = None
+    _wrapper_dir: Optional[Path] = None
 
     _default_source_config: Optional[BasicSourceConfig] = None