diff --git a/homeassistant/components/recorder/purge.py b/homeassistant/components/recorder/purge.py
index 26ddefedf7d..90a69f8f2a1 100644
--- a/homeassistant/components/recorder/purge.py
+++ b/homeassistant/components/recorder/purge.py
@@ -26,6 +26,7 @@ def purge_old_data(instance, purge_days):
         _LOGGER.debug("Deleted %s events", deleted_rows)
 
     # Execute sqlite vacuum command to free up space on disk
-    if instance.engine.driver == 'sqlite':
+    _LOGGER.debug("DB engine driver: %s", instance.engine.driver)
+    if instance.engine.driver == 'pysqlite':
         _LOGGER.info("Vacuuming SQLite to free space")
         instance.engine.execute("VACUUM")