diff --git a/.env.example b/.env.example
index e2e0b18720..358fec2d52 100644
--- a/.env.example
+++ b/.env.example
@@ -325,6 +325,12 @@ USE_RUNNING_BALANCE=false
 #
 FIREFLY_III_LAYOUT=v1
 
+#
+# Which Query Parser implementation to use for the Search Engine and Rules
+# 'new' is experimental, 'legacy' is the classic one
+#
+QUERY_PARSER_IMPLEMENTATION=legacy
+
 #
 # Please make sure this URL matches the external URL of your Firefly III installation.
 # It is used to validate specific requests and to generate URLs in emails.