diff --git a/src/conf.py b/src/conf.py
index 19d721549..3c0e10078 100644
--- a/src/conf.py
+++ b/src/conf.py
@@ -847,6 +847,8 @@ class Databases(registry.SpaceSeparatedListOfStrings):
                 v.insert(0, 'sqlite')
             if 'sqlite3' in sys.modules:
                 v.insert(0, 'sqlite3')
+            if 'sqlalchemy' in sys.modules:
+                v.insert(0, 'sqlalchemy')
         return v
 
     def serialize(self):