diff --git a/example.env b/example.env
index 2f1eac40ffef12a4af8952dbeb09516988fd00ca..593a054ecccafcdfd040a3c6c9848c66b6f25f78 100644
--- a/example.env
+++ b/example.env
@@ -86,6 +86,9 @@ PROXY=false
 # Reform name must belong to a name of an OpenFisca reform in metadata.json
 # REFORM_REVALUATION=contrefactuel_plf
 
+# Indique que la réforme PLF est fausse si cette variable est à true.
+REFORM_MOCK_VALUES=false
+
 # Show intro balloons.
 SHOW_TUTORIAL=true
 
diff --git a/src/lib/components/variables/InflationLawDetails.svelte b/src/lib/components/variables/InflationLawDetails.svelte
index bc7744877afaf56faf9f1692bf4016e46c609ce7..18dcee63fb2c57be9de4b659b21fd444a50df91f 100644
--- a/src/lib/components/variables/InflationLawDetails.svelte
+++ b/src/lib/components/variables/InflationLawDetails.svelte
@@ -180,7 +180,7 @@
           >
         {/if}
       </span>
-      {#if billMockValues}
+      {#if $billMockValues}
         <!-- MONTRER WARNING -->
         <button
           class="mt-2 font-sans text-base bg-orange-200 px-1 italic text-orange-800 hover:underline cursor-pointer"
@@ -213,7 +213,7 @@
         />En {$yearPLF}, les seuils augmentent de {revaluationInflatorValueFormatted}.
       </p>
     {/if}
-    {#if billMockValues}
+    {#if $billMockValues}
       <!-- MONTRER WARNING -->
       <button
         class="mt-2 font-sans text-base bg-orange-200 px-1 italic text-orange-800 hover:underline cursor-pointer"
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 0001a7d32f421a48e80eb2aacc67e72066af981d..63e552f475364b0f7369c6e0bee0e9fa757882b5 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -105,9 +105,7 @@
   setContext("billName", billName)
   const billActive: Writable<boolean> = writable(currentBillName !== undefined)
   setContext("billActive", billActive)
-  const billMockValues: Writable<boolean> = writable(
-    data.reformMockValues === true,
-  )
+  const billMockValues: Writable<boolean> = writable(data.reformMockValues)
   setContext("billMockValues", billMockValues)
 
   let currentRevaluationName: string | undefined =