diff --git a/.gitignore b/.gitignore
index 655ff4f..366d6f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,8 +10,9 @@ rdflib_sqlalchemy.egg-info
 /.eggs/
 /dist/
 /venv/
+.venv*
 docs/api
+*.sqlite
 
 # JetBrains IDE files
 /.idea/
-
diff --git a/pytest.ini b/pytest.ini
index 5604830..75da5b8 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -6,7 +6,7 @@
 norecursedirs = .git env
 
 # Output in color, run doctests
-addopts = --color=yes
+addopts = -rfEXs --color=yes
 
 testpaths = test
 # Run tests from files matching this glob
diff --git a/rdflib_sqlalchemy/store.py b/rdflib_sqlalchemy/store.py
index ebeb769..f20aca3 100644
--- a/rdflib_sqlalchemy/store.py
+++ b/rdflib_sqlalchemy/store.py
@@ -307,7 +307,7 @@ def destroy(self, configuration):
         Delete all tables and stored data associated with the store.
         """
         if self.engine is None:
-            self.engine = self.open(configuration, create=False)
+            self.open(configuration, create=False)
 
         with self.engine.begin():
             try: