diff --git a/mdaadb/analysis.py b/mdaadb/analysis.py
index a6573aa..0213bd4 100644
--- a/mdaadb/analysis.py
+++ b/mdaadb/analysis.py
@@ -150,6 +150,7 @@ def results(self) -> Results:
         return self._analysis.results
 
     def __enter__(self):
+        self.db.open()
         return self
 
     def __exit__(self, *args):