diff --git a/README.md b/README.md
index bd19f2b..d20aae2 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ For building `opendetex` (which is a necessary dependency), you will need
 * Build `opendetex`: `cd reference_fetcher/opendetex; make`.
 * [This is all if you only want to use the `reference_fetcher`. Else, go on reading]
 * Download required Python modules: `pip install -r requirements.txt`.
+* [Optional] Update configuration in `config.py`. Default values are for testing and dev.
 * You are ready to go.
 
 ## Test it
diff --git a/config.py b/config.py
index d1c6e41..9861087 100644
--- a/config.py
+++ b/config.py
@@ -1,5 +1,5 @@
-# database = ":memory:"
-database = "dev.db"
+database = ":memory:"
+# database = "db.sqlite3"
 
 host = "localhost"
 port = 8080