diff --git a/example.env b/example.env
index da6119527c4ddfca16dd0da0232b9eeaadd304ad..a73c221c27947c4a58ebf279a5b1376c43453f90 100644
--- a/example.env
+++ b/example.env
@@ -77,10 +77,12 @@ PUBLIC_PORTAL_URL="https://leximpact.an.fr/"
 # Optional name of default reform to use
 # Reform name must belong to a name of an OpenFisca reform in metadata.json
 # PUBLIC_REFORM=reforme_test_1
+PUBLIC_REFORM=
 
 # Optional name of revaluation reform to use
 # Reform name must belong to a name of an OpenFisca reform in metadata.json
 # PUBLIC_REFORM_REVALUATION=contrefactuel_plf
+PUBLIC_REFORM_REVALUATION=
 
 # Show intro balloons.
 PUBLIC_SHOW_TUTORIAL=true