diff --git a/workdirfs.py b/workdirfs.py
index f79d102..9f885ac 100755
--- a/workdirfs.py
+++ b/workdirfs.py
@@ -20,7 +20,7 @@ except:
         from fusepy import FUSE, FuseOSError, Operations
     except:
         print("please install fusepy")
-        raise errno.ENOENT
+        raise errno.ModuleNotFoundError
 
 
 class WorkdirFS(Operations):