diff --git a/public/pwaInstall.js b/public/pwaInstall.js
index 37d83fb..422e3a4 100644
--- a/public/pwaInstall.js
+++ b/public/pwaInstall.js
@@ -1,24 +1,26 @@
 // src/pwaInstall.js
 let deferredPrompt = null;
+let promptShown = false;
 
-// Stocke l'événement natif quand Chrome le déclenche (après interactions)
+// Stocke l'événement natif (se déclenche après interactions)
 window.addEventListener('beforeinstallprompt', (e) => {
   e.preventDefault();
   deferredPrompt = e;
-  console.log('PWA: Install prompt ready - waiting for user click on button');
+  console.log('PWA: Install prompt ready - button can trigger it now');
 });
 
 // Fonction appelée par le bouton "Install"
 export function promptInstall() {
-  if (deferredPrompt) {
-    console.log('PWA: Triggering native install prompt');
+  if (deferredPrompt && !promptShown) {
+    console.log('PWA: Triggering native prompt');
     deferredPrompt.prompt();
+    promptShown = true;
     deferredPrompt.userChoice.then((choiceResult) => {
       console.log('PWA Install outcome:', choiceResult.outcome);
       deferredPrompt = null;
     });
   } else {
-    console.log('PWA: No prompt ready yet - interact with the site (scroll, click)');
-    alert('PWA not ready yet. Try scrolling, clicking filters or markers, then click Install again.');
+    console.log('PWA: No prompt ready - scroll/click more on the site');
+    alert('PWA not ready yet. Try scrolling the map, clicking filters or markers, then click Install again.');
   }
 }
\ No newline at end of file