diff --git a/lib/ui/authentication/signin.dart b/lib/ui/authentication/signin.dart
index 36ce44a..af6efdc 100644
--- a/lib/ui/authentication/signin.dart
+++ b/lib/ui/authentication/signin.dart
@@ -46,13 +46,18 @@ class _SigninPageState extends State<SigninPage> {
     SharedPrefs().email = "";
     SharedPrefs().expire = 0;
     SharedPrefs().guid = "";
-    SharedPrefs().langage = "";
     SharedPrefs().last_traduction = "";
     SharedPrefs().nom = "";
     SharedPrefs().prenom = "";
     SharedPrefs().version = "";
     SharedPrefs().photo = "";
 
+    // if the default language is not set
+    if (SharedPrefs().langage.isEmpty) {
+      // set to french
+      SharedPrefs().langage = "fr";
+    }
+
     super.initState();
   }