diff --git a/README_fr.md b/README_fr.md
index 72ffddf..ad68290 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -1,7 +1,7 @@
 # Roundcube pour YunoHost
 
 [![Integration level](https://dash.yunohost.org/integration/roundcube.svg)](https://dash.yunohost.org/appci/app/roundcube) ![](https://ci-apps.yunohost.org/ci/badges/roundcube.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/roundcube.maintain.svg)  
-[![Installer Roundcube avec YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=roundcube)
+[![Installer Roundcube avec YunoHost](https://install-app.yunohost.org/install-with-yunohost.svg)](https://install-app.yunohost.org/?app=roundcube)
 
 *[Read this readme in english.](./README.md)*