diff --git a/example.env b/example.env
index 9b9afe9b123bc0bfb12934a5e7bdfab96cb9fc44..094169b2a700ec57b36cc19e58c8e7305cc03e8f 100644
--- a/example.env
+++ b/example.env
@@ -73,6 +73,10 @@ PROXY=false
 # Reform name must belong to a name of an OpenFisca reform in metadata.json
 # REFORM=reforme_test_1
 
+# Optional name of revaluation reform to use
+# Reform name must belong to a name of an OpenFisca reform in metadata.json
+REFORM_REVALUATION=contrefactuel_plf
+
 # Show intro balloons.
 SHOW_TUTORIAL=true