diff --git a/app/dialogs.py b/app/dialogs.py
index e76440e..c484427 100644
--- a/app/dialogs.py
+++ b/app/dialogs.py
@@ -57,7 +57,7 @@ class ReplaceFilesDialog(QDialog):
         # We only want to run this against the production database because
         # we will affect files in the common pool of tracks used by all
         # databases
-        dburi = os.environ.get("ALCHEMICAL_DATABASE_URI")
+        dburi = os.environ.get("DATABASE_URL")
         if not dburi or "musicmuster_prod" not in dburi:
             if not ask_yes_no(
                 "Not production database",