diff --git a/wrapper/wrapper.py b/wrapper/wrapper.py
index 37f0787..714e19f 100644
--- a/wrapper/wrapper.py
+++ b/wrapper/wrapper.py
@@ -93,7 +93,7 @@ class BaseWrapper(Wrapper):
         raise NotImplementedError()
 
     def is_wrapped(self):
-        return os.getenv('KUPFERBOOTSTRAP_WRAPPED') == self.type.capitalize()
+        return os.getenv('KUPFERBOOTSTRAP_WRAPPED') == self.type.upper()
 
     def get_bind_mounts_default(self, wrapped_config_path: str = None, ssh_dir: str = None, target_home: str = '/root'):
         wrapped_config_path = wrapped_config_path or self.wrapped_config_path