diff --git a/src/components/action-buttons.vue b/src/components/action-buttons.vue
index ca9f190489..549b1387e9 100644
--- a/src/components/action-buttons.vue
+++ b/src/components/action-buttons.vue
@@ -61,12 +61,11 @@ const localOnSubmit = (event) => {
 }
 
 const goBack = () => {
-  window._paq?.push([
-    "trackEvent",
+  window.Piwik?.getTracker()?.trackEvent(
     "Parcours",
     "Bouton précédent",
-    route.fullPath,
-  ])
+    route.fullPath
+  )
   const answerIndex = getAnswerIndexByPath(
     store.simulation.answers.current,
     route.fullPath
diff --git a/src/plugins/state-service.ts b/src/plugins/state-service.ts
index 8722664668..926337d369 100644
--- a/src/plugins/state-service.ts
+++ b/src/plugins/state-service.ts
@@ -24,7 +24,7 @@ const StateService = {
               action: "Navigation cancelled",
               label: failure.toString(),
             },
-            this.$matomo
+            window.Piwik?.getTracker()
           )
         } else {
           throw new Error(failure)